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Prev Professional Automotive Repair Technical Discussions for June 16, 2011
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Open Help Requests for European
Help Request Answers
2004 Audi S4 4.2L engine VIN: 988908JHKO
customer says suddenly while the engine was running fine a loud tapping developed that could be easily heard and felt holding the shifter knob. no mil light when i inspected a-idled perfect b-never mil 3-drove for 20miles and motor ran perfect but i sometim...
1998 BMW 528i 2.8L Mechanical VIN: WBADD6323W
A/C compressor belt rattles at idle and low speeds-looked on internet and bmw forums-not an unusual problem-most said to replace belt and tensioner and make sure the refridgerant charge is correct-we have done all and noise is still present-not as bad-the tens...
2003 BMW 325i 2.5L Readiness montors VIN: WBAEV33483
Had bmw code 143. Could not activate dmtl pump with scanner. Checked power and ground and found all ok. Replaced module and cleared i can activate module and it turns on. Have driven this car for a week now following the drive cycle and it will not r... Trouble codes: 143 (Bmw code for dmtl detection module tank leakeage)
2003 Land Rover Freelander SE3 2.5L Misfire VIN: SALNY12283
Car came with tons of fault codes, running badly with no acceleration. Fault codes were for misfires, coil#1 and 3, and malfunction with variable intake system. I replaced all spark plugs and coils, and checked compressions (they were good and constant). I wa... Trouble codes: P0303 (Misfire 3)
1984 Porsche 944 2.5L Excessive Emissions, Poor Idle Quality, Surge VIN: WP0AA0941E
First let me thank all the great people at iatn, and all the followers, all of you are great. This car came in about 3 1/2 months ago. It started out with poor accelleration response and running rich it would almost burn your eyes out in the we replace...
2003 Saab 9-3 SE 2.0L oil leak VIN: YS3DF78K33
Hello people, Have this 03 saab 93SE. Has oil leaking by oil pan area. It is getting onto the flex pipe and burning. I cleaned the area and ran the car on the lift several times and cannot seem to make it leak. If the car is driven for a few days it leaks but...
1996 Volkswagen Jetta GLS 2.0L Radio code VIN: WVWFE83A6T
Customer has lost the radio code and has no money to pay the $80 to the dealer to get code. SAFE is displayed all time the radio is on. I have all the numbers off the radio if somone could tell me the code for it and how to plug it in would be realy cool. Ra...
2002 Volkswagen Passat GLS 1.8L 1-2 Shift VIN: WVWPD63B52
Hi, this car came from transmission shop. they told the owner this is electric problem. so I checked the car. shifts very hard. I followed the procedure for checking the code. the resistance measures good. there is no open or short to ground. I checked the tra...
2003 Volkswagen Jetta GLX 2.8L Cuts out, Stall VIN: 3VWTH69M53
The car is back on a tow truck. we have spent a considerable amount of time this past week going over the unit with a fine tooth comb. We called Bosch Help and the tech was very helpful and offered numerous suggestions and things to look at. ie: crank sensor v...
2006 Volkswagen Jetta TDI 1.9L power windows VIN: 3VWRT81KX6
This customer came to me first with a complaint of the passenger door window not working. I verified the complaint and pulled codes; 00933 open circuit. I replaced the passenger side motor and the drivers side harness, as per TSB. The harness did have broken w...
2006 Volkswagen Passat 2.0T 2.0L AC compressor VIN: WWWEK73C96
Vehicle came in today for no ac. Hooked up ac machine and found nothing in system. Vacuumed for 30 mins and held vacuum at 30 in-Hg for 30 mins. Charged system to 1.35 lbs and leak check. During operation of system, ac was still not blowing cold in car. Compre...

Fixes & Summaries for European
Fix/Summary Answers
2003 Audi A6 Quattro Avant 3.0L MIL Lamp on VIN: WAUVT64B43
Not finding any updated software as most mentioned-owner is scheduled to bring vehicle in so we can continue testing-I will post results after vehicle is repaired-thanks for the replies-Deke
2007 Audi A4 Quattro 2.0L Poor Idle Quality, MIL Lamp on VIN: WAUDF78E67
Most of the replies suggested trying another valve until we got one that worked! I found it hard to believe the dealership could have been so out of the loop on this and not able to supply us the correct part. I found a reference in IATN that had the same pro... Trouble codes: P1297 (Intake pressure drop), P1093, P2177 (System too lean).
1999 BMW 740iL 4.4L rear suspension VIN: WBAGJJ0339
all of the help offered was good i'm sure, but it turns out after doing a simple, more detailed visuall inspection i found that there was a broken rod on the hieght sensor/control valve.i found it after re-checking mitchel on demand and finding a lengthy artic...
2000 BMW Z3 Roadster 2.5L Poor Idle Quality, Hesitation, Surge, Stall, Misfire, MIL Lamp on VIN: 4USCH9345Y
Many thanks for the replies! We decided that we must verify the timing of the exhaust camshaft, so I ordered the tools from Assenmacher. After getting everything set up, we determined that cam seemed a bit off, but not neccessarily a tooth off. After some t... Trouble codes: 104 (Control VANOS end pos fault exhaust cam P1520), 238 (Misfire cyl 1 P0301), 245 (Flow rate sec air system too low Bank1 P1423), 246 (Flow rate sec air system too low Bank2 P1421), 242 (Misfire cyl 5), 243 (Misfire cyl 6).
1994 Mercedes-Benz S500 5.0L No Start, No Communication VIN: WDBGA51E4R
Thanks for all replies. Turns out the final fix was a problem I created. The starter wiring harness was most definitely deteriorated an shorted in multiple areas, and the base module was internally damaged. However the reason there was no communication after r...
2005 Mercedes-Benz ML350 3.7L Compressor VIN: 4JGAB57E65
The AC is fixed. Here is what we did: - Alexander:since new control head is expensive, we sent car to dealer to make sure if there is any programming issue, there was none, just confirmed our diagnosis- faulty control head - Robert: our Launch could not ...
2008 Other European tx2 2.4L ac operation VIN: SCRCD16N04
Gentlemen, thank you for the info, I didn't expect too many answers on this one as it is an odd one to say the least, we found the leak at the compressor orings using nitrogen, someone had tried jb weld on the oring seal of the compressor!!!, anyway it seems t...
1989 Porsche 911 Turbo Carrera 3.3L Runs at key off VIN: WPOZZZ93ZK
Thanks to the people who pointed me in the right direction with this. All great replies! When first starting out I wasn't sure about why the ignition wasn't shutting down, and the replies stating this was normal sent me in the right direction. Otherwise I migh...
1990 Volkswagen Jetta GL 1.8L Master Cylinder, Brake booster VIN: WVWRA21G4L
Thank you so much for all the help, well i tested the booster as you guys stated and found that after i depleted all vacuum from the booster and started the vehicle the pedal would fall slightly so this confirmed that the brake booster was working. i tried ano...
2000 Volkswagen Jetta GL 2.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3VWRC29MZY
Most everyone suggested testing or replacement of the coil. The coil was tested and replaced though it did test fine previously. The new replacement coil made no difference. There are no signs of head gasket leaks or any other problems. A good used ECU is on t... Trouble codes: P0301 (Cylinder 1 misfire).
2000 Volkswagen Jetta GL 2.0L MIL Lamp on VIN: 3VWSKZ9M21
many replies said aftermarket radio will cause this. one reply said try removing the faceplate from the radio first. I tried that first and still got no communication so i pulled the radio from the console and disconnected it from the rear. after that i was ab...
2003 Volkswagen Beetle Turbo S 1.8L No Start VIN: 3VWDD21CX3
as it turns out, there is additional fuse links on top the battery. These are just copper links that are in a small compartment atop the battery. When they blow it leaves a hairline gap in the fuse (very hard to see, unless under close inspection). The fuse in... Trouble codes: P0261, P0267, P0270, P0267, P0445, P0037.
2005 Volkswagen Passat GL TDI 2.0L Torque Converter Lock Up VIN: WVWME63B85
Had transmission removed and inspected found front pump busching worn out, first 3 transmission techs just overlooked it,
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