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Prev Professional Automotive Repair Technical Discussions for March 9, 2012
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2007 Audi A4 Quattro Avant 3.2L cam sensor VIN: WAUSH78EX7
It comes back a week later with the mother of all rod knocks. THEN the customer tells us that he drove up a huge embankment after the accident. (Once again thanks alot!) So no oil pressure resulted in cam skipping and rod bearing going out. We get a new (used)...
2003 BMW X5 4.4i 4.4L MIL Lamp on VIN: 5UXFB33573
Hello, thanks for your attention: I currently have two codes that I can not figure out. The vehicle came in with a number of codes. I clear codes and focus on the codes that set after letting the client drive the car for two days. DTCs found: 16 O2 sensor 1 be... Trouble codes: 16 (O2 sensor 1 before CAT aging TV), 22 (O2 sensor 2 before CAT aging TV), P1168 (Undocumented code), P1170 (Undocumented code)
1987 Mercedes-Benz 420SEL 4.2L Stall VIN: WDBCA35D0H
Car will stall after about 15 minutes, it will usually restart and run for a short time after initial stall. Not very familiar with Mercedes, lacking proper adapters for fuel pressure test. Ignition system does not appear to lose spark. Just looking for some t...
2006 Volkswagen Jetta TDI 1.9L Misfire VIN: 3VWGT31K46
Customer reports that he filled the car up with GAS, but did not start the car - took it to another mechanic who flushed all the lines, replaced filter and filled with diesel. This car came to me after this with a misfire when hot, under load and an intermitta...
2002 Volvo S60 T5 2.3L no throttle response VIN: YV1RS58D92
Originally, it had fault P2126 too (accelerator position sensor, analog signal faulty). Has a Bosch throttle module that doesn't need software if replaced. Throttle position, KOEO, shows correct values but with engine running in Drive won't go above 2% with h... Trouble codes: P2122 (accelerator pedal position signal too low), P2121 (accelerator pedal position faulty digital signal)

Fixes & Summaries for European
Fix/Summary Answers
2003 Audi A4 1.8L Temperature gauge VIN: WAULC68EX3
Thank you very much IATN! Got lots of great answers, and it seems the water pump went out. Told the customer he needs a water pump and thermostat, but he declined repairs at this time. Thanks again for the insight and have a great weekend!
2003 Mercedes-Benz E500 5.0L compressor VIN: WDBUF70J23
The general consensus is the compressor is a common failure item with these vehicles, with the emphasis on replacing the compressor rather than trying to repair it. Several also noted that on the models equipped with a one-way alternator pulley (yes, alternato...
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