How to remove air pocket in cooling system bmw

How to remove air pocket in cooling system bmw. Fill the radiator with coolant as full as possible—this may take some time as the level drops and air bubbles pop on their own. I started the engine and the book says to cycle the rpm's up and down several times to purge the air out and draw fluid in. On the w123, there is a hole machined into the thermostat housing whose sole purpose in life is to allow for air within the cooling system to be shunted OUT of the system. Also check the passenger floor board. Turn the ignition on(key position 2), but do not start the engine yet. Then I check for the radiator hose to all get hot which signifies that that the thermostat has opened. Aug 17, 2016 · Here are the steps to bleeding the air out of the cooling system. The water pump circulates the coolant and keeps the system pressurized. Do this a few times then let idle and shut off engine to let engine cool and then top off coolant. BMW Cooling System Fundamentals. The sensor displays a lower temperature, which does not let the fan and cooling system turn on. The coolant bleed port location is to the right of the engine shroud. - leave rad cap loose This stage bleeds air trapped in the heater system. The return cooler line to the transmission drain pan has zero suction. . After I replaced the plug, I added fluid until the tank was about 3/4's full. If you have a helper, have them Rev the engine and if there is still air in the system, you'll see bubbles in the degas bottle when he hit the gas. StoneDude76 said: Leave the cap off the radiator and let the truck get up to operating temp. Once the system is topped up then install cap and accelerate the engine up to 2000 rpm for 30 seconds and let it idle. jssmith76 said: Feb 27, 2021 · Do it until the heat works and the level in the bottle stays steady. KingFisher187. As soon as the cooling system circuit is full, close the intake valve again. Slowly add more coolant until no more bubbles are coming out of the bleeder hole (about 5 Mar 20, 2013 · Run the engine with the rad cap off. You don't want it spinning too slowly or too quickly. Switch off the engine and allow it to settle for about five minutes. When the level in the rad appears to go down, add more coolant in. If it’s super minor you can just turn it defrost but leave it off. You'll observe the coolant level drop as the air is cycled out, and see air bubbles escaping Jul 25, 2020 · It’s hard to get air out of the cooling system, but this special funnel brings the liquid to the highest point of the engine where the air can freely be work Jun 11, 2015 · You can also use a jack for the same affect. Do not put the cap back on yet. There are multiple attachments available, so a mechanic When the air gets trapped inside the cooling system, it causes the system to overheat. Fill coolant expansion tank up to lower edge of filler neck with. You may have an air lock in the cooling system or your heating control valve may be stuck/broken cable. Feb 26, 2019 · So get home, jack the front up or park the front on a set of ramps, let it cool. Turn on the heater fan to the medium speed 9. Just make sure to run your engine for 20min in between purges so your battery is charged up. I'm having a heck of a time, trying to bleed the air out of the cooling system of my 5. 6. Just fill until the fluid level gets between the lines on the ball, start the car and keep squeezing that hose that runs from the head to the radiator. Bubbling or overheating is a sign of blockage in the cooling system. Open your radiator cap, insert the angled peice of the spill free funnel into the correct cap for you car, then the main peice of the funnel on that, Make sure Dec 21, 2008 · 1) With car cold turn on key to run position (do not start the car), set HVAC system to 90 degrees and fan on low. Close your air bleeding valves. Air pockets forming in your cooling system can rationalization problems, but the good news is they're often easy to fix. 1. Add coolant to proper levels and close the cap. Jun 13, 2022 · Let the car run it for a few minutes, even up to operating temperature to open the thermostat and get the water through the whole system. 4. Bad coolant refill: If the system is not properly filled it may allow bubbles to form. Apr 6, 2021 · Improper flushing of the system: This may leave pockets of air trapped inside the system. Follow the steps and tips to avoid overheating and damage. How to Remove Air Pockets from Cooling System. The procedure for the Polaris ATV's was just that. Add more if it needs it. Aug 12, 2020 · how to remove trapped air in cooling system Oct 2, 2018 · I remove the reservoir cap and let engine warm up, squeezing the radiator hoses often to push any air back to the reservoir. We finished the procedure without a battery charger, despite the BMW repair manual’s recommendation. Take a gallon in the car with you and head around the block. Like previous post says, from cold start remove radiator cap, turn heater on to lowest fan position let run until thermostat opens. Leaving your radiator cap off, you should start your vehicle and turn your heater on high. Patreon: https://www. Reinstall heater hose. Mar 21, 2024 · Step 8: Refill coolant if necessary. Nov 26, 2021 · Detailed video with all steps on how to flush "burp" your cars cooling system. Ensure that the coolant mixture is the same as the coolant in the system. Jan 18, 2021 · After any coolant related repairs, air will most likely enter the cooling system. Jan 22, 2009 · Heater not heating but fan working what could be the cause. Let your engine idle again and recheck and refill the coolant level and lower the front of your car. Oct 24, 2020 · How to bleed the air from the cooling system on a BMW with an electric waterpump such as the N51, N52, N53, N54 engines. Top up the tank again, start the engine and allow it to run up to operating temperature (just under halfway up the gauge). Feb 15, 2020 · Bleeding a cooling system is needed anytime you open up the system and perform a repair In this video we will cover the basics of bleeding a cooling system. The engine could also start to overheat. (Coolant flow to the heater core bypasses the thermostat. Insert a Funnel into the Radiator. Remove Thermostat Housing (Note the Engine Hook) & Remove Thermostat: 9. The most common cause can be a blown head gasket. Bubbles should burp out of the coolant, which is the system’s way of evacuating air. All these parts work together to maintain the proper engine temperature Aug 27, 2021 · When the air enters the sealed system, the blockage is formed by air pockets. patreon. Apr 4, 2023 · Here is the procedure: 1. - remove the top and bottom hoses. Bleeding the system will ensure that no air pockets exist and the coolant can do its job properly. recommended coolant. Refill the engine with coolant. After the thermostat is open, open the heating to the max. The above little trick will help get rid of air outside of the engine. Radiator. #1 · May 17, 2013. Filling it through the heater hose pushes the air out the top of the block. After filling up your radiator with coolant into a For More Info visit us at: http://1aau. Nov 15, 2012 · It is very very unlikely for these to accumulate into a sufficiently large air pocket to actually cause problems, if you bled the car according to the Bentley manual's instructions correctly. When air gets trapped in the cooling system, it can form air pockets that impede the proper flow of coolant. fill the radiator, put the cap back, on then let her down. By bleeding the system, you can make sure there are no air pockets and the coolant can function as it should. Reinstall the Arm with new Hydraulic Tensioner; then install new Roller. Apr 10, 2006 · All you do is take the cap off and let the engine run. These air pockets can get trapped in different parts of the system, including the radiator, heater core, water pump, and hoses. Let Jeep sit over night and do again in the morning. I know you can have air pockets in cooling system but never heard of it in AT. Repeat the squeeze/fill cycle a few times. Also raise the engine RPMs to help get it to operating temp faster. after she cools off i like to double check the radiator and make sure the reservoir is at the full line before you start May 16, 2010 · Bleed the system with the following proceedure - and it is necessary to raise the front end of the 6 cyl cars to do this-----Cooling system bleed procedure – M62 engine (E39 – 97 version) - with cold car - top up coolant to proper level. Open heater hose, pour coolant, stop pouring when it starts making a mess. Part# 17111436381. Place a funnel into the radiator. 29. The self-bleeding technique should be started by: Jan 30, 2017 · Here's an easy way to get the air out of your coolant after working on the cooling system in your car - try using a spill-free coolant funnel like this one: Mar 2, 2016 · Hemi 6. Fill to full. Turn the bleed screw 2 turns counterclockwise and attach the end of a 4 feet, clear hose to the bleed screw. Fire up the engine, and squeeze that radiator hose several more times for good measure. Genuine BMW $63. The problem with this procedure is that the t-stat is slow to open because the combustion chambers of the engine are at the top! So, a lack of coolant could result in a locally hot-pocket of trapped air. May 17, 2013 · 2626 posts · Joined 2008. Remove the intake duct to get to the four torx bolts for the air duct. Locate the bleed screw and place a pan on the floor to catch the coolant that will come out through the screw. You may have to do this a couple of times. May 8, 2017 · Yes, I know the previous owner replaced it but it's an easy check: - drain the coolant. This is an easy way to allow the burping of your radiator system to get rid of the air pockets in your system after working or Mar 26, 2024 · When air enters your car engine’s cooling system, it can create air pockets that prevent coolant from flowing through the system. Preparation: Before starting the bleeding process, ensure that the engine is cool. Other possible causes include a leaking radiator cap, a faulty water pump, or a damaged coolant hose. ) I burped the system again and it ran normal for a week then started running hot again. Causes of an Air Pocket in the Cooling System. The engine, hoses, radiator, and expansion tank are filled with coolant mixture. it helps if you take the cap off it will push the air out by itself but make sure the engine is cold when you remove the cap or you will get burned an then crank the engine let it run for 20-30 mins that should push all out. to be sure all the air pockets are out i like to jack the nose end up as high as my floor jack will take it then let it run till the thermostat opens. To purge the air out of the cooling system BMW has provided a bleed screws which should be used during a bleed procedure. The coolant system ensures that the engine can perform at an optimal rate since it keeps it at an optimal temperature. As it heats and goes through the system the air will work itself out. Thankfully, you can quickly get rid of any air in your cooling system with the help of a vacuum coolant filler. Jul 27, 2013 · Get a spill free funnel. 99 2500, Quad cab, 4x4 47RE, BD pressure lock on it, small BD 90/140 chip on the VP 44 connection plug, 17" 3rd gen wheels. flush the system by leaving the radiator cap off as directed by the instructions. The heat blows cold and hot. Starting from the pump, coolant enters the engine block and cylinder head to regulate Oct 19, 2013 · The air pocket usually gets trapped in the block. Mar 14, 2023 · As coolant is added, air can get trapped, leading to a circulation backup in the motor. buymeacoffee. #2. If you can't find a bleeder if you find the highest point on the Aug 30, 2016 · The vacuum coolant filler is designed to eliminate this by creating a vacuum that removes all bubbles trapped in the line, then adds coolant to the vacuum sealed coolant system. Jul 22, 2016 · Bucuresti/ Romania. Next, remove the water pump and the thermostat. Fill up the system, start the engine to normal temp. When it comes to BMW's we all know the weak point is commonly in the cooling system, many models proving hard to bleed the air pockets out after the refresh. In this video I cover all the symptoms of having air trapped inside your cooling system, including overheating, high operating temperature, no heat from your Jan 21, 2010 · With the truck cold, remove the radiator cap (obviously don't do this hot as you might have an eruption), start the truck, turn the heater on high so the heater valve will open to circulate coolant through the heater core. Replace the Hydraulic Tensioner. This should do it. Step 9:Run the engine for another 10 minutes. 7L Hemi. For the record, you are making this much harder than it needs to be by over thinking it. Cooling System Parts List. Once you are convinced the air is out then trim the hose back to normal size. Bleeding a Radiator Bleeding the radiator is the process of releasing the air that may become trapped in the upper portion of a2015 Jeep Grand Cherokee s radiator. I doubt it ever worked dropping a cooler line into a new bottle of ATF. Allow the engine block to completely drain then replace the hose. Nov 14, 2021 · 28856 posts · Joined 2010. Turn counter clockwise with the coolant tank full. Mar 10, 2021 · Due to factors beyond the control of RB The Mechanic, it cannot guarantee against unauthorized modifications of this information. Thus causing the Nov 4, 2021 · BLEEDING THE COOLING SYSTEM ON A BMW WITH ELECTRIC WATER PUMPIf you would like to help support this channel please take a look at these tools I recommend and Apr 29, 2009 · Squeeze the upper radiator hose tightly, and release, several times, then top off your coolant. Nov 16, 2010 · Of course you could also have a bad/sticking t-stat and not any air pockets. Bleeding a cooling system is needed Mar 5, 2013 · Remove the heater hose from the thermostat housing, then add coolant to the radiator until it overflows from the heater hose nipple on the housing. Let the vehicle idle for about 15 minutes watching the fluid level. Reply Like. Learn how to bleed cooling system on BMW with this easy tutorial video. Start by removing the four torx bolts for the plastic intake duct at the front of the engine compartment. - turn the water for the maximum flow. I then top off the reservoir as needed and put the cap on while the engine is still running. Make sure the heater core is not leaking inside the car. - put a garden hose in the top inlet. Let coolant fall into the reservoir, and plug the funnel with the remaining coolant before removing it. It’s an electric pump, thus the bleeding procedure requires a powerful battery. I have looked in the owners manual and on the engine, to see if there is a bleed screw or some kind of a valve or something. Expansion tank. RB The Mechanic assumes no Feb 17, 2016 · The Venturi Method: This cooling system refiller kit draws a vacuum on the entire cooling system, ensuring that no air pockets are left while refilling; Eliminates trapped air to protect your engine Enhance Efficiency: Rapidly purges trapped air and refills automotive coolant; Tester and filler kit includes sturdy plastic carrying case for Dec 1, 2002 · Put the flush tee cap back on and run the engine for a few minutes, or pressurize the system with a pressure tester. If there’s air trapped, you will see bubbles in the radiator. In such a case, the air pressure is transferred to the cooling system from the cylinder heads. Do again in the afternoon if you can or the next night. Aug 5, 2010 · The generic way to bleed any cooling system is this, raise the car front end up as high as poss with a floor jack, top off the radiator and fill the coolant recovery tank all the way up, run the engine until it gets hot but do not overheat it, allow the engine to cool the system will self purge of air and pull the needed coolant into the engine from the recovery bottle, after this is done Dec 10, 2011 · Make sure the vehicle is level, if the filler neck is at a low point compared to rest of system it could be difficult to purge the air from system. to/2iJT0GIVacuum Fill Tool Demonstration-https://ww Jan 21, 2021 · Steps to bleed a BMW cooling system. Once the t-stat opens rev the engine to help push the air out. Working on a hot engine or pressurized cooling system can be dangerous. Jun 26, 2011 · Never had any system burping issues. Behr $137. Check the weep hole on the water pump as well. Nov 28, 2023 · I suggest you unlock the secret cluster menu and get a numerical reading of the coolant temperature. You want to make sure and keep some extra water/coolant mixture on hand and keep an eye on the temp guage. # 5. Once the tstat opens keep the RPMs up around 1500-2000 for a minute or so just so the water pump is working and flowing coolant throughout the whole system. 55 diffs. 8. If you see the coolant in the reservoir go down, it means the system is bleeding itself out. Be patient and be patient when filling the cooling system!!! 4. This can result in inadequate heat dissipation and ultimately lead to overheating. Feb 5, 2011 · Next remove all of the plastic air intake parts so we can get at the cooling system. This debate about. :good2: Ensure the engine is cold and check the radiator; I'll bet it will take another 2-3 quarts of coolant. The process in this video uses a May 25, 2022 · Fill the intake hose with cooling water so that air bubbles are not sucked in again. At the end refill to the sign. Any air in the system will be forced out to the radiator and levels will drop. - see what happens. , after I i Nov 13, 2023 · Start your car and let it idle. Now place the suction hose in the container you have at the ready. Open the valve on the intake hose and put the coolant into the system without any air bubbles. If it’s a steady leak the floor board will be wet/damp. Stop the engine and go for a short, low-speed drive. Model of Z. As the fluid level drops, keep adding coolant. Because it's an electric pump, a strong battery is necessary for the bleeding process. 3) Begin to pour coolant into expansion tank keeping level near top of tank until air free coolant flows from Mar 31, 2022 · Air pockets can form in the cooling system due to various reasons, such as improper coolant maintenance, coolant leaks, or incomplete coolant refill after repairs. There are several reasons why air pockets may form in the cooling system. Like. It makes the job so much easier. Jul 22, 2016. 29 (Automatic transmission) Part# 17119071519. On a BMW this is a mix of monoethylene glycol and distilled water. Might have to do this several times if the drive cycles are short. Mar 9, 2010 · Step 2 - Turn On the Engine. Is it the resistor module or the themostat. With the bleeding screw open give it few Rev reprises. View part diagram for this step. As noted, after driving the vehicle to a complete normal operating temp, check the recovery tank the next day and top off. The tool itself is a pneumatic device that includes an attachment that is secured to the overflow reservoir cap. to/h/cBL/So you just replaced something to fix your overheating cooling system, or maybe you flushed the coolant, and Step-by-step video showing how to "burp" cooling system, and remove all trapped air from within radiator and cooling system. The rest of the system remained unchanged. The following users liked this post: solraC (02-28-2021) 02-28-2021, 11:41 AM. Using a mixture of 50/50 antifreeze and water, add coolant until the system seems full. If you run the engine and let the system burp as described above using the bleeder you should be able to get all of the air out. Check and correct the coolant level as necessary for a few cold-hot-cold cycles. One common cause is improper bleeding or filling of the coolant during routine maintenance or repairs. We would like to show you a description here but the site won’t allow us. Feb 7, 2021 · Then, with the heater fully "on", run the engine until the thermostat opens, and add coolant as required through the open radiator cap until full. May 7, 2018 · Mercedes engineers are smarter than Mercedes owners. If you have a proper funnel, put that on and fill it up somewhat. Start the Vehicle. Here’s a step-by-step guide on how to bleed air from your BMW 328I’s cooling system: 1. Once you don't see any bubbles anymore you should be good. It may take between 15 and 20 minutes for the engine to heat to the proper temperature and begin cycling coolant through. The boring part is watching the open filler neck for 10 minutes. If coolant gushes out it can drip down and short the DME connectors, they are not fluid tight. Maybe 10 minutes at a time. ) after May 10, 2010 · tippmann243. If the heat comes and goes, it could be the thermostat, or the Nov 4, 2017 · Repeat this procedure allowing the temperature to rise to a quarter of the way up the gauge. 1-2 mm to the right of center with a temperature gauge that is buffered, on purpose, is not a good way to assess and diagnose. Take the Rad cap off and start and get to temp, squeeze the top hose a few times wait for level to drop. Air gets into your cooling system when there are leaks or loose connections in the hoses, radiator, water pump, or other components. It is a + or X looking like screw. Step 2: after flush is complete, turn the hose off and remove it. Before removing the air duct you need to undo the 5 clips holding the top of the Apr 11, 2012 · It controls the speed of the fan. Turn the heat on to max heat setting and fan speed on low. Slightly crack the tee and see if you get air to bubble out. The cap should be loose during cycling. Add antifreeze as needed. - The engine must be refilled with coolant using a vacuum refill tool. Apr 4, 2009 · Or drop 1 line into discharge bucket and the other line into the new bottle of ATF. When coolant is flushed and refilled, air pockets are trapped in the cooling system. Behr $139. drain the system again and cap the Apr 16, 2010 · It will eventually settle down to "KALT" level anyway. The system may need to be checked each morning to bring the level to the cold fill line before starting. It eventually causes the cooling system to overheat. Under normal operating conditions, you should be somewhere between 94-98 degC. 2. Turn dial in the center vent to the maximum red indicator 10. In the case of my 1976 Corvette, I simplified the cooling system by deleting the heater hoses when I rebuilt the air-conditioning blower and installed a new heater core. No heat is a classic sign of low coolant. Nov 27, 2011 · Step 1: drain the radiator into a 5-gallon bucket, cap it, and install the flush kit as directed by the instructions, then fill the system up with the garden hose. (it helps if the tube is clear so you can see the coolant as it gets close to your mouth. When fully warmed up fill slowly with coolant and rev it up a bit to push air out. It’s possible to bleed the air out of the cooling system, but it should only be done by a professional. The air pockets that form causes hot spots in the engines which can cause t Sep 22, 2021 · Remove the Radiator Cap. com/Geor Jan 5, 2017 · Come along as we show you how to purge air from your engine cooling system. i then use a small diameter tube (~5/16 inch, inside diameter) to siphon the coolant out of the jug and into the rad. Vacuum Refill Tool-http://amzn. When the engine is running, the water pump circulates Aug 17, 2018 · This is a wonderful tool yes a tool to have and use when working on a automotive cooling system. This may cause your engine to overheat . 3. Replace the radiator cap. Sep 4, 2023 · Due to complicated castings, extra hoses and preformed coolant tubes air can easily get trapped in the cooling system causing hot spots and, depending where the air gets trapped, reducing coolant flow. 9. Feb 12, 2024 · Air pockets. The engine coolant consists of equal parts of antifreeze and water. com/Fill kit: OEMTOOLS Step 2: Make sure that your overflow tank is at the level of coolant where the line marked "COLD" is, make sure that you car is cold, do not try this with a engine that has been running. All the air should now be expelled. In this video I'll go over 3 ways you can bleed your cars cooling system. The coolant system is made up of many parts, including the radiator, water pump, thermostat, fan, and a series of hoses that connect everything together. Now that you know what radiator airlock is and know the Nov 1, 2005 · I filled mine until coolant came out of the bleed port on top of the front thermostat housing. As you drive the car and it heats up, the air pockets expand and are pushed into the coolant reservoir. At this point, you should repeat these steps until you get heat inside the car and your coolant temperature reaches 90C and stays there. Once you feel or hear that there's no "bubbling" when you squeeze and release the hose, you're ready for the next step. If there Nov 24, 2019 · By design the heater core is the last to get coolant (cars and trucks too), so liquid stays in the engine. Turn counter clockwise with the Aug 5, 2017 · This step by step video Shows How to fill up radiator coolant and Bleed Air Out the Cooling system or How to refill Radiator coolant step By Step. Don't overfill your reservoir, just be at the Max line (top of toilet). Leave the radiator cap off, turn on your engine, and let it run until the radiator bleeds out air. At that point, I chose to plug the inlet and outlet heater core tubes and get rid of the old hoses which helped clean up the engine bay. Dec 10, 2009 · 1997 - 2003 Ford F150 - air in cooling system - as of today,i have replaced the heatercore, water pump, thermostat,and radiator,the mechanic has had my car for 10 days now, and every time i go to get my car he said there is an air pocket in the system,i am not a mechanic but should this problem have been solved in 10 Jan 27, 2022 · iTrader: ( 5) You could do the bleed procedure a few times. - Remove the coolant hose (1) from the front of the thermostat. 4. As the coolant circulates, air frothing get Nov 2, 2010 · Open vent screw (1). Help me fuel more content: https://www. It also helps get the smaller pockets of air bleed out. Once that’s done, let it cool and then drain. 2) Remove coolant pressure cap on expansion tank and the bleeder screws from thermostat cover and expansion tank. 5. Warm it up with the cap off. Locate Bleed Screw: The cooling system of the BMW 328I is equipped with a bleed screw. The resistor controls fan speed, not temp. I have already filled the cooling system with water and Prestone Flush, run it In maintaining your cooling system, you can both bleed a radiator of excess air, and flush a radiator of old coolant. Fill as necessary. #17 · Nov 16, 2021. Prepare the coolant. Click to enlarge image. Sent from my XT1080 using Tapatalk. Step 8:Let the engine cool down once the bubbles subside. The cooling system is designed to evacuate all this air out to the expansion tank during driving. 30 (Manual transmission) Part# 17111436060. Blown head gasket: Bubbles may form as air is forced into the cooling system from the combustion cylinder. The truck will have to warm up so the thermostat opens to circulate coolant. Jan 2, 2019 · 7. Z3 roadster 1. Remove the radiator cap with the system cool. The air bubble which gets trapped in the temperature sensor makes it nearly impossible for the sensors to report the accurate temperature. Instead, add a new coolant to bleed out the air bubbles. Jack up the front, then the rear cycling several times. Everytime you open your cooling system to fix a leak or replace a bad component you Feb 3, 2014 · i put the gallon of coolant on top of the engine, either the passenger strut tower or the air box near the firewall. May 14, 2006 · Remove the Roller and the Arm that holds the Hydraulic Tensioner (which sits in the back of the Arm). As the engine cools down, the expanded air pockets contract; hence, coolant is sucked from the reservoir to replace air. Any time you drain the cooling system, or it's opened anywhere other than the expansion tank, you should bleed the system. You do not need to drain the system if the old coolant is clean. If you are worried, then use a turkey baster to remove a bit coolant so it sits just below the neck prior to running the engine. It will keep bubling the air out and suck the coolant in. Remove the expansion tank cap and fill up with a 50/50 mix of BMW coolant and distilled water up to the max line. Sep 22, 2023 · One of the most prevalent myths is that air cannot cause overheating in the cooling system. Turn on the heater to the maximum temperature of 91 degrees (opens the heater valve for coolant flowing through heater to remove air pockets) 8. Dec 23, 2012 · No bleeder valve on Cobalt. See if your windshield fogs up some. Fill the Radiator with Coolant. However, the truth is that air can indeed lead to overheating. Feb 5, 2016 · How to get rid of the trapped air in coolant system. Feb 24, 2015 · To prevent a cooling system air pocket, you will need to refill your cooling system properly. Then put cap on let run for a couple of minutes then top up reservoir. "burping" or purging air from the system has been going on for decades. Bring the coolant level to the "Cold" mark. gq rb wi pn hz gi jj bp gl ea