BMW X5 E53 (also E60 & E46) common problem, lean misfire at idle and engine rattle: BMTroubleU

The cause of common e53 x5 lean misfire in 6 cylinder petrol engine. Also may present with an engine rattle, especially on start up. PLEASE NOTE I NO LONGER DO REQUESTS AS I DONT WORK FOR BMW ANY MORE BUT IM STILL HAPPY TO ANSWER QUESTIONS

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BMW Misfire/ Rough Idle M54 6 Cylinder Low Compression
Does your M54 BMW engine have a misfire/ low compression ? Don't be quick to replace the engine. Please try this first before that is done. Could save you $1000's !!! Please Read Below !!! How this is done: Remove the Coil then the spark plug. After they are ALL out, we pour 1 ounce of fluid into each cylinder. Then I reinstall the spark plugs and let the car sit overnight. The next day you want to remove all the spark plugs again. Place a heavy towel over the valve cover so that all the spark plugs holes are covered. Proceed to crank the motor over using the key. Do this 4 separate times for 10 secs each time. Reinstall all the spark plugs and torque to spec. Reinstall all the coils and connect harness. If you were planning to replace the spark plugs ( Which I recommend ) I would wait till all the cleaning chemical is burned out of the cylinder. Start the car and vary the rpm for 1 minute between 1000 RPM and 3500 Rpm. if the engine seems like it is not clearing out or running rough after the 1 minute. Turn the engine off and restart. After the 1 minute has been completed, then run the engine @ 3500 rpm for 5 minutes ( Pending that there are no other issues with the engine) After that an extensive test drive on the freeway is recommended ( 15-20 miles). This chemical is strong and not healthy to breath so lots of outdoor space and fans to blow the Exhaust fumes away is recommended. After all is completed then reinstall the cover over valve cover. Depending on the mileage and time car has been driven in this state, it could take multiple tries to resolve issue. Also it is good to have car diagnosed as a low compression issue before performing this repair, since many other issues can mimic this symptom. Hope this helps!!

How to diagnose BMW E46 E39 E53 Vacuum leaks Lean codes P0171 P0174 for the M54 M52tu
How to diagnose BMW E46 E39 E53 Vacuum Leaks Lean codes P0171 P0174 for the M54 M52tu Send stuff to my PO box for products you want reviewed or for a shout out on the channel, Nathans DIY Garage PO BOX 115 Altenburg MO 63732 Check out My girlfriend Ambers channel

M54 Idle Control Valve Removal and Cleaning E39 E46 E53 E85
GET VALVE CLEANER HERE: GET A NEW IDLE CONTROL VALVE HERE: GET THE GREY GROMMET HERE: How to remove and clean the idle control valve on an M54 engine. Found on E46, E39, E53, E85. ONLINE THE GRAM FACEBOOK TWITTER Disclaimer: Due to factors beyond the control of BIMMERZEIT, we cannot guarantee against improper use or unauthorized modifications of this information. BIMMERZEIT assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. BIMMERZEIT recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of BIMMERZEIT no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not BIMMERZEIT. Video and Content is owned by BIMMERZEIT © 2016

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