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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 9, 2021
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Open Help Requests for European
Help Request Answers
2009 Audi A4 Quattro 2.0L engine VIN: WAULF68K79
At idle only engine runs rough and has engine knock. Increase the idle slightly above idle and knock is gone and runs great. Is there an oil pressure check valve or controller for oil pressure that differentiates idle from higher RPM? Lots of reading, noth...
2011 Porsche Cayenne S 4.8L SRS system VIN: WP1AB2A21B
We hope someone was through this before: air bag warning stays on. We found very little info on this issue. Pass. side SIDE air bag - located in the right front door seems to be the cause. When we unplugged the connector in the R/Frt A-pillar the same code...

Fixes & Summaries for European
Fix/Summary Answers
2013 Mercedes-Benz C250 1.8L MIL Lamp on VIN: WDDGF4HB0D
I always like to try the least expensive,least labor intensive thing first, so we went for doing a Liqui Moly engine flush that they recommend in their catalog with their list of products and procedures. It worked, the vehicle has been on the road for a week a... Trouble codes: P0304 (Combustion misfiring of cylinder 4), P0313 (Combustion misfire with active fuel reserve signal), P61A9.
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