Leaving the car in park will prevent the engine from rotating as the transmission won't let it move. This harness is clipped to the valve cover at its lowest point. Use the parking brake to prevent the car wheels from rolling. Factoring in the cost of the tools with the parts brings the DIY bill to nearly $1200. 2012-2015 BMW 3-Series and 4-Series Forum. Then, use a 5mm hex socket or Allen wrench and turn the eight fasteners on the cowl 90 to the left. Use an E8 socket for the fuel rail clamp fasteners and torque them to 8 N m. Plug the rectangular connector on the wiring harness into the back of the fuel rail. Use a 10mm socket to secure the six bolts for the cowl cover to the car and an E20 socket to secure the four bolts that mount the brace to the car. BMW just redesigned the n20 timing chain related components and my 328i would be one of the first to receive the update. The 22V-119 safety recall covers all you need to know about this issue. When it starts to move, put one hand in the engine to keep the pressure on the rail as you back out the tensioner tool with the other. Head into the trunk and locate the battery. Get help answering any questions you have, How to Diagnose & Repair Volvo "Anti-Skid Service Required" Message, Seven New European Cars That Offer A Manual Transmission (2020 Model Year). The timing chain guide was reportedly redesigned about January 2015 for this engine and is expected to reduce or eliminate the problem. Im with you on that. Disconnect the wiring from both of them. To replace the entire guide/chain/tensioner is either a costly fix with a shop or a longer one with you doing it at home. Use a 24mm socket to tighten the cam adjusters to 55 N m, plus another 55 of rotation. Pull the variable timing components off of the sprockets and then pull the sprockets off of the camshafts. Use a screwdriver or pick to free the harness and pull it around the front of the engine. Slide the guard onto the fuel pump and situate it onto the valve cover. Go slowly and work around that, and the assembly will all come out together. I'm at 89k with no issues on my 2013. The timing chain guides, as their name suggests, keep the chain on its proper path at the proper tension. Adjust the tool as necessary and then lock it down by tightening the two bolts with a 13mm wrench. Make sure the bottom left guide pin goes through the chain guide and not behind it when installing. $229.00 $ 229. Bn )ve $` If youre interested in more DIYs for your BMW, you can visit bmw.fcpeuro.com and subscribe to our YouTube channel. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. On either end, there are two push clips that lock it into place. They did update the tensioner as well, but the root cause as far as I understand was the guide primarily. For a better experience, please enable JavaScript in your browser before proceeding. There are three bolts holding the oil pump drive assembly into the engine. The timing chain guides can now be loosened with everything else out of the way. Take the brace and cowl cover, and set them onto their mounting points. When you do find it, pull it out in the direction of the loop. Clip them into the metal brackets once they're connected. Push down on the tab located on an angle facing the drivers side and pull the plug off of the rail. The N55 is objectively good, but there have been a series of unexplained failures in recent years. The drain plug on the engine is a 10mm hex. bimmerfest.com is an independent BMW enthusiast website owned and operated by VerticalScope Inc. The E8 bolt gets 10 N m, the T40 guide pin gets 14 N m, and the T45 guide pins get 24 N m of torque. Timing Chain Replacement Kit - F22 228i, F30 328i, F32 428i, Z4 28i N20/N26 RWD. Hit the dampener with a mallet or hammer to loosen it up. Grab the valve cover by one of the camshaft solenoid holes and by where the vacuum pump sits at the back, and rock the cover back and forth until it is freed. This Genuine BMW Timing Chain Tensioner (Mfg#11318685091) fits BMW E84 X1 sDrive28i, BMW E84 X1 xDrive28i, BMW F10 528i, BMW F10 528i xDrive, BMW F22 228i, BMW F22 228i xDrive, BMW F23 228i, BMW F23 228i xDrive, BMW F25 X3 sDrive28i, BMW F25 xDrive2.8i, BMW F26 X4 xDrive28i, BMW F30 320i, BMW F30 320i xDrive, BMW F30 328i, BMW F30 328i xDrive, BMW F31 328i xDrive, BMW F32 428i, BMW F32 428i . Very interesting story. Free shipping for many products! Next up is the fuel rail plug. Use a 27mm socket to tighten the tensioner to 80 N m. Loosen the engine mounts and jack the engine up off of the mounts. Next, loosen the four top bolts on the cam lock tool, and remove the two mounting bolts. The fuel delivery system can now be removed with the wiring out of the way. There are twenty-two (22) E8 bolts that secure the oil pan to the engine. Next, slide the wastegate actuator through its mounting bracket and secure it with its three 10mm nuts. bimmerfest.com is not in any way affiliated with Bayerische Motoren Werke AG. The bolt gets torqued to 100 N m, plus another 270 of rotation. Im definitely keeping this car as long as possible. bimmerfest.com is not in any way affiliated with Bayerische Motoren Werke AG. Probably, but as long as you catch it before your engine grenades, you're better off waiting until it's necessary and upgrading to new ones at that point. Then, pick up the timing chain assembly from the top and carefully drop it into the engine. The engine will cost over 10K and who knows where you will be when it breaks. Take the fuel rail and situate it on the valve cover. A lobe on the exhaust camshaft interacts with the high-pressure fuel pump to send fuel into the engine. Push down on the tab and pull the plug off. These guides are made from plastic. There are a lot of small pieces that need to be removed and unclipped before getting into the heart of the timing system. Then, before connecting anything else, fill the engine with oil, and change the filter. 320 0 obj <>stream N20 engines were released in 2011 and began phasing out in 2016 in favor of the new BMW B48 engine. The chains literally stretch and jump timing. :1 3dXfz1FF7s/3$ 6 @$*i` The first bolt goes in just above the front subframe, and the second bolt goes in above the oil level sensor, which can now be reconnected to the car. // end settings. Additionally, you can check the timing by reinstalling either of the camshaft tools to see if they fit without having to rotate them. First, take the chain, the three guide pieces, and the sprocket, and lay them out on a flat surface. If i SAW ANY TENSIONER PIECES, I'd put a new chain and guides, there is a TSB from bmw that shows to replace these guides and chain for vehicle made before 03/2013 . Biggest solution to this is coding out auto stop/start. If everything was done correctly, the car will start and run with no issues. Replacing the BMW N20 timing chain and guides is not for the faint of heart. Plug in the O2 sensors. . Tighten the oil filter cap to 25 N m when reinstalling it. A jack handle or a long piece of pipe can be slipped over the breaker bar. Lastly, install the strut top covers. Each piece will slot into the middle cowl piece first, and then three plastic locks can be twisted into place with a 10mm socket. Then, use an 8mm socket to tighten the rod to 0.6 N m or 5 in-lbs. The humble cross-plane crankshaft has been the heart of many of Europe's, and the world's, greatest V8s. Clip the airline on, plug in the sensor, and clip the coolant line under the plenum towards the driver's side of the engine bay. No . If the chain hasn't stretched, then something has happened to the guides. Next, use a 16mm socket and pull it to the drivers side of the engine bay to remove the tension from the accessory belt tensioner. At the back of the cylinder head, nearly up against the firewall, is a vacuum pump. Next, fit the engine mounts back into the subframe and thread in the bolts to get it in the right orientation. Sit the pump-to-rail feed line in its clip and start threading in the two mounting bolts. Take the left-side guide and rotate it to the left so that the bottom is closer to the right-side guide than the top. Next, sit the wiper cowl over the wiper motor and seat all of the locks into place. Steps for reassembling the BMW N20/N26 timing chain assembly: Step 1: Assemble the new timing chain assembly The new timing chain assembly is shipped unassembled and needs to be snapped together before being installed. Support the middle guide when the second bolt is removed; otherwise, the guide will fall into the engine. Would Replacing to old timing chain tension the updated one prevent the timing chain problems on the pre 14s before they start? This Has been a big subject with everyone on my blog,,,,some of you guys have been asking about the bulletin about this repair,,,,so this is the BMW bulletin that us technicians work with,,,,I hope this helps some of you guys. under the intake to the turbocharger and tighten it down to secure the two together. However, there are some gems out there that won't break the bank. A belt or chain skipping a tooth can cause the valves to hit the pistons, destroying the engine. Horizontally opposed views, only. The tool is designed to be a tight fit and may require a few taps with your hand to seat fully onto the cylinder head. Use an E12 socket to torque them to 9 N m. To be extra careful, tighten them all halfway before starting the pattern over again and setting the final torque value. Here are some of our favorites from Europe. The issue is so much of a tensioner issuer as it is the guide itself. I just did this job on a 2013 X3 XDrive (11/21). My 2014 X1 which I have owned since new has just under 50,000 miles. Now that the rear harness has been removed, the front harness is next. . Pull the belt off of one of the pulleys and release the pressure on the tensioner. Make sure all of the wiring and fuel lines are out of the way before dropping the cover on. To remove their electrical connections, pull back on their tabs and pull out on the connections. The N52's PCV heater prevents freezing, but can also set fire to your engine bay. For a better experience, please enable JavaScript in your browser before proceeding. Take a look at the timing chain sprocket now that its out of the car. JavaScript is disabled. Then grab it by the right side and pull up to pop it off of the last pin. The sound deadening foam sits atop the engine, and under the plastic cover matches the top of the engine, which means that when it is sitting in the right spot, it should be relatively flat. It's a new year, and that means new inventory. Posted on August 2, 2017 by bmwtechnician. @G9z 5/!:p_=5 The valve cover is secured to the cylinder head via twenty E12 bolts. Factoring in the cost of the tools with the parts brings the DIY bill to nearly $1200. endstream endobj 291 0 obj <>stream The new timing chain won't have any play in its length, making the cam sprocket installation a bit tricky. Listen to the noise at 0:44 in the video above, BMW N20 N26 Balance Shaft Seal Tool Kit - CTA 7676, BMW SI B11 09 15 Technical Bulletin - The Importance Of Priming The N55 Oil System, BMW 22V-119 Recall: Stop Your BMW N52 Engine From Catching Fire, BMW N55 Water Pump Ground Bolt Replacement - Do It Before You're Left Stranded, 2023 FCP Euro Winter Kit Sale: Our Experts' Favorite Kits, 5 Of The Best Used European Luxury Cars To Buy Under $10,000, 5 Of The Most Notable European Tuning House Conversions, European Cross-Plane V8 Engines You Should Know About, A rattling or clacking noise coming from the front of the engine on start-up. Amazon.com: bmw timing chain tensioner. Take a 5mm hex wrench and twist the locks in the center of the cowl 90 to the right to lock them, and the panel, down. Just beneath the Vanos plug is the high-pressure fuel pump. Which broke first, the chain or the guide? I know its apples to oranges, bringing in the Audi issue, but I thought it was relevant. I personally feel that the guides cheap thin plastic breaks and causes the chain to oscillate and cause the destruction. The two slots at the back of the engine and the small mounting ball opposite the oil filler cap should be accessible for the plastic engine cover. Take the accessory belt and seat it onto the vibration dampener. Tighten them to 5.5 N m. Plug the actuators in once they are torqued down. The BMW N20 timing chain is replaced because it wears out quickly for the following reasons: The tensioner has deteriorated, as a result, the timing chain of the BMW N20 does not stretch well, slips, and the valve timing is disturbed. A forum community dedicated to BMW owners and enthusiasts. I'm personally going to just keep checking until my CPO is up in 11k. Using a 24mm socket, remove the camshaft sprocket nuts. Tightening this bolt will thread it up into a small lever coming out from the transmission. Lastly, remove the two E8 bolts in the center of the middle guide. 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