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Prev Professional Automotive Repair Technical Discussions for May 31, 2013
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2000 BMW Z3 Roadster 2.8L Floor VIN: 4USCH3349Y
Rain water coming into rear pillar from convertible top, it is normal to drip it there, but can not find water drain holes or channel. I have limited information on this, Alldata does not show anything and it is soaking the floors and trunk. Thank you!
2004 BMW 760Li 6.0L Surge VIN: WBAGN83444
This car has been a night mare. after replacing high pressure pump, plugs,and valve- this car has a surge on light acceleration. smoke test showed no runs great at idle and on medium to heavy acceleration. i can watch rpm needle bounce 100 to 200 rpm...
1999 Mercedes-Benz ML430 4.3L condenser fans VIN: 4JGAB72E8X
this one has poor a/c performance, has full charge(70psi static) and pressures good at idle, the condenser fans do not work, i believe the control side for the relay is the issue as i can command the fans on with the power probe at the relay, there is power on...
2006 Mercedes-Benz E350 4Matic 3.5L cooling VIN: WDBUH87J06
Car is getting oil in cooling system and forcing it out overflow. There is no coolant in oil. Looks like engine oil, is light tan in color.Any one seen this before on this engine? Car does have oil cooler on filter housing, I'm thinking this may be problem , b...
2007 Mercedes-Benz SL550 5.5L Ride control? VIN: WDBSK71F27
This Benz came in with a complaint of a loud thunk on start up and a battery light illuminated on the dash.The ABC (automatic body control) warning light was on. We determined that the rear supply battery was bad and replaced it with the proper AGM battery.Thi...
2008 Mercedes-Benz SL550 5.5L Trunk VIN: WDBSK71F18
Hey Gang. I have this 08 SL550 (230.471) The auto trunk won't close with the button in the trunk. It will auto open with the trunk outside handle and it will go auto up and down with the lh door panel switch. I denormalized the trunk and then normalized it. It...
1996 Saab 900 SE Turbo 2.0L Excessive Emissions, Poor Fuel Economy, MIL Lamp on VIN: YS3DF75N9T
This car initially had a lean code that comes and goes. The oxygen sensor is not switching according to the ecu. 3 upstream oxygen sensors all do not switch properly and mostly sits at .49v. The flow chart for p1171 says to take a 1.5v battery to check the s... Trouble codes: P1171, P0171, P0300
1995 Volkswagen Passat GLX 2.8L front windows VIN: WVWFE83A3S
This VW front door electric windows do not operate from the driver door switch. The right front window does operate up and down from the right door switch. The windows can be raised and lowered with the driver's outside door lock mechanism as normal except tha...
2004 Volkswagen Jetta GLS 2.0L Electronic VIN: 3VWSK69M04
Please only answer if you know vw a/c issues well. This vehicle came in and no a/c. The refrig charge is good so I put a test light on the wiring harness side of the + wire to test for 12 volt. No steady 12 volt but every 3 seconds the test light would flash a...
2010 Volkswagen Jetta TDI 2.0L No Start VIN: 3VWRL7AJ8A
car was towed in with a no start condition. only thing I have found so far is no power to injectors. I do have a ground for them. From what little info I can find for this system it appears its power and grounds come from the ecm. so far all sensors test good.... Trouble codes: P0087
1999 Volvo V70 X/C AWD 2.4L Cvvt VIN: YV1LZ56D4X
well this one has ne stumped! I am working on a 1999 Volvo v70 xc. came in with a blown head gasket (Failed Hc test and was blowing coolant out the de-gass bottle) from a leaky water pump. While doing diag test drive the car was running ok for the most part un...
2001 Volvo S40 1.9L Misfire VIN: YV1VS29531
Cylinders 1&2 are dead. Removing the injector connector has NO effect. The scan tool however shows misfires on cylinders 1&4. the previous mechanic installed the timing belt, But the marks look good. Found a vacumn leak at the intake, replaced intake man gaske... Trouble codes: P0301, P0304

Fixes & Summaries for European
Fix/Summary Answers
2004 Audi A6 Quattro 3.0L Misfire VIN: WAULT64B34
Thanks for the replys.customer has not returned for repair. problem seems to be intermitant.Will update post when car comes back. Trouble codes: P0301, P0302, P0303, P0306, P1428.
1991 Mercedes-Benz 300E 3.0L Poor Idle Quality, idles to fast
well the car is still here,have replaced all control units from same model sitting next to it,same result,also put a 6mm restrictor in the idle circuit,but still increases to 1500rpm at idle,when hot,so i will keep pressing on with it as time allows,am trying ...
1996 Mercedes-Benz C280 2.8L MIL Lamp on VIN: WDBHA28E7T
Hi techs, Sorry for the late response. Like I said in my post, I bought the vehicle so of course it gets pushed aside to let the money cars come in. We found a blown engine computer fuse (I know, I probably should have checked it first before posting). I have...
2001 Mercedes-Benz S500 Guard 5.0L Suspension VIN: WDBNG75J71
Richard from Fla. answered my question. The valves in the distribution block can leak and the simple test is that no air should come from the distribution block back towards the compressor with the system shut off. Ours was leaking and causing both front str...
2003 Mercedes-Benz SLK230 Kompressor 2.3L No Start VIN: WDBKK49F33
In my post I did not list the obvious tests and inspections any good technician would do in the course of finding the problem. I got some replies that were quite uncalled for and disrespectful to a fellow technician. I was disappointed. Through several sour...
2003 Mercedes-Benz SLK230 Kompressor 2.3L No Start VIN: WDBKK49F33
Please see the TechHelp request that followed this one that had more information that has been closed.
2004 Mercedes-Benz C230 Kompressor 1.8L engine VIN: WDBRF40J74
replace new ac compressor , customer drive for a week fine thank you for all help and replies
2003 Mini Cooper 1.6L Tpms VIN: WMWRC33473
Thanks for the replies found out the switch was bad under the park brake handle. I disconnected it and the light went out pulled it appart to find soda in the switch replaced all good now thanks.
2000 Volkswagen Jetta TDI 1.9L Windows, Power Locks, Interior Light VIN: 3VWSF29M8Y
Thank you all for your input. After tracing wiring in areas suggested, coding convenience module(s), etc, problem ended up being faulty drivers side window motor/drivers door module combo. A new drivers door module from VW fixed the issues. After replacement, ...
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