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Audi A4 Maintenance and Repair

2367 messages,  Last post on May 16, 2013 at 8:34 AM

You are in the Audi A4 Forum.

What is this discussion about? Audi A4, Convertible, Sedan, Wagon

    
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Messages Page 211 of 237

#2101 of 2367 New Noise by embeeduece

Oct 19, 2009 (3:59 pm)

Audi 2005 A4 Quattro. Engine makes a whirring / whining noise every now and then. Used to be way worse until I got a motor mount replaced. Still whirs / whines every now and then but let it go as normal Audi quirks. Also, brakes squeal a lil; but last time in was told I had enough left on the brakes to not warrant immediate action. Now, lo and behold, I have a new troubling noise. Very hard to describe as it is quite diffuse. Best I can describe is that's it's metal grinding. Maybe occasional clunking. And if I had to guess, I'd say the noise emanates from the rear. Reading thru this discussion, seems like it might be ABS related. I can't isolate when it happens, though it *seems* to happen mostly when I decelerate and break. I know ABS does a boot-up or whatever when you first start the car. My noise is after having driven for a while. Any thoughts, suspicions, etc? Thanks, Mike

#2102 of 2367 engine poblem by krisztian

Oct 20, 2009 (12:08 pm)

hi , i bought an audi a4 2002 and the car has couple of issues. The first and probably biggest is the engine. I put the diagnostic system on and i got that all four cylinders miss firing, i pulled the packs off one by one and i found out that the second cylinder was not running. I have changed the coil packs and that did not solve the problem later I checked the compression in the cylinders and I got good value only from one cylinder. Open valve? cylinder head seal?
could anyone help me ?

#2103 of 2367 Re: engine poblem [krisztian] by mercops

Oct 21, 2009 (9:40 am)

Replying to: krisztian (Oct 20, 2009 12:08 pm)
Sounds like you made a good start at trying to diagnose the problems, but I have a couple of questions that may be able to narrow the search. I assume it is a 1.8 liter engine.
 
1. You state that a diagnostic system was put on the engine. Did it record or do you have any codes related to the misfiring? If you have the codes it could help to narrow down the problem.
 
2. You relate that you checked the compression and got a good value for only one cylinder. Did you do the compression check correctly? For proper check, Audi Tech info requires that the engine oil temperature be at least 85 degrees; the fuel pump fuse be removed; all plugs pulled; fully open throttle valve; attach compression tester and crank engine until the tester shows no further pressure increase. This will give you most accurate compression check. Tech info also shows that on new engine, compression can be 9-14 bars ( 130-200 psi) and the minimum acceptable compression is 7.5 bars (110 psi) with allowable difference between cylinders being 3.5 bars (44 psi). If your readings are within this range, then it is fairly safe to say that the head seal is good (from what I have found, the 1.8 engine head gasket usually does not fail too often).
 
3. When you pulled the plugs, what did they look like, did they have discoloration? Sooty? Burnt? Correctly gapped? Any deposits that would indicate oil or coolant leaks? Did you replace then when you replaced the coils?
 
4. Additional info on misfire that you should check is: Faulty spark plug; Faulty ignition wires with connector; Faulty fuel injectors; Crankshaft housing leak (check the hose setup of the crankcase ventilation system for secure seating and proper seal) as this will also cause problems with engine firing correctly (emissions issues)
 
Hope this info helps you diagnose your problems. Let the group know of your success.
 
Cheers
Mercops

#2104 of 2367 Shudders when accelerating by wendyx

Oct 22, 2009 (4:29 pm)

I have a 2003 A4 1.8T Convertible with 53K miles. I'm noticing a shudder when I accelerate from a stop . . . any thoughts on the cause? It has been going on for awhile but in the last few days it is more often and more pronounced.

#2105 of 2367 New 2010 Audi A4 First Service issue by boas13

Oct 24, 2009 (8:21 am)

Hi everyone. Just sold my 2006 BMW 325xi (that was a repair nightmare) and have a new, 4 week old Audi A4 2010. Much better than the BMW and the dealer has been fantastic, great car. Only issue is the mode switch on left side of the steering wheel that broke a few days after I picked up the car. Dealer advised could not order new one until they could inspect it. In at 7am and twenty minutes later they advised 1. It was a bad switch 2. There were none (zip, nada, zero) in the country and 3. Had to be ordered and no clue when it would be in.
Did the survey and gave the dealer and car 5 stars (based on my BMW experience if you mark anything on the survey low Corporate slams the dealer, regardless of any facts.) I noted on the survey I wanted someone from corporate to call me - no one did - and just spoke with my sales rep to get me a name and number. I admit the part is not critical but it is disturbing they don't have one part in the country on a new car and no idea when it will be in.
Is this an isolated incidendent or can I expect this to be a routnine occurence? thanks

#2106 of 2367 Re: New 2010 Audi A4 First Service issue [boas13] by Mr_Shiftright HOST

Oct 24, 2009 (11:43 am)

Replying to: boas13 (Oct 24, 2009 8:21 am)
dealers are franchisees. Some will go the extra mile for you, some could care less. My friend's dealership (unfortunately not Audi) would track down that part for you if it were humanely possible to find one.
 
To be fair, sometimes replacement parts on a brand new model *are* hard to come by. I just don't like the "no clue" part of their answer as to timeframe.

#2107 of 2367 Re: New 2010 Audi A4 First Service issue [Mr_Shiftright] by boas13

Oct 26, 2009 (5:29 am)

Replying to: Mr_Shiftright (Oct 24, 2009 11:43 am)
I feel my dealer did go the extra mile but when there is no part in the country, its just simple logistics and it is the corporate office to blame. Just got off the phone with Audi Customer Relations. Very nice rep and said all the right things but..... "we will call the dealer to investigate and get back to you by Wednesday". They have the VIN, you would think they could look it up in SAP and tell me later today where the part is. Not too promising but maybe, just maybe, they will get a few more parts in the country. And I do hope the dealer doesn't get slammed for a part Audi decided not to have in the entire country. Thank God it is not a major or essential component as I would not be happy to have my car laid up for several weeks waiting for a transatlantic delivery of a $3 part.

#2108 of 2367 Re: New 2010 Audi A4 First Service issue [boas13] by Mr_Shiftright HOST

Oct 26, 2009 (8:20 am)

Replying to: boas13 (Oct 26, 2009 5:29 am)
Well in a perfect world they'd be on the horn to Germany and have a part shipped for you or at the very least put in the pipeline and verified. I used to do things like this for Benz back in the 1970s when I worked at corporate. But alas, that was a simpler world I guess.

#2109 of 2367 Re: New 2010 Audi A4 First Service issue [boas13] by vwdawg

Oct 26, 2009 (8:45 am)

Replying to: boas13 (Oct 26, 2009 5:29 am)
Hello, boas13. It appears that the dealer is making a reasonable effort to take care of this annoyance. However, if they really wanted to impress you, they would pull one of the salesperson's demos into the shop and remove the part from THAT car and install it on yours. Better that the sales guy/gal takes the hit and waits for the part than a good customer who just spent $40,000 on a defective car. audiophile1

#2110 of 2367 Re: New 2010 Audi A4 First Service issue [vwdawg] by mercops

Oct 26, 2009 (11:28 am)

Replying to: vwdawg (Oct 26, 2009 8:45 am)
vwdawg hit the nail on the head, only problem is that it makes too much sense and would provide REAL customer service.......something that in todays world even money can't buy.

Messages Page 211 of 237

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