Quattro mad
Registered User
Here goes, bit of a saga.
I've have read quite a few articles relating to B6 owners experiencing similar problems to mine but haven't discovered the cause of the fault as quite often the conclusion or outcome hasn't been posted!
I have anAudi A4 B6 2.5 tdi QuattroSport Avant Auto with about 150k on the clock. About May this year I started experiencing vibration from the rear when I applied the accelerator. Initially is was intermittent but became more permanent & tended to be about 30 mph or greater. The first thing I did was to get my wheel balancing checked & I also get my 4wheel alignmentcheck twice a year. This made no difference. My Audi specialist mechanic suggested it could then be either the rearwheel bearings(which were ok) or the propshaft. Everything pointed to the propshaft, which he removed & thought it had excessive play in the centrecv joint, similar to what he had experienced with BMW's, which needed changing. I sent the propshaft to 2 independent propshaft specialists who rebuild Cayenne, Touregs & Q7 propshafts & both agreed the centrecv jointhad excessive wear which could explain the vibration symptoms I was getting. Unfortunately neither of these specialists could obtain genuine replacementAudi partsas Audi don't allow them to be sold individually on the open market even though my vehicle is 11 years old. I was left with 2 options, fit one from a breakers or pay Audi £1100 for a new one!
Not keen fitting one from a breakers, as it could be worse than mine, but I couldn't locate one anyway due to having an auto box, so left with getting it from Audi.
Got the propshaft fitted by my specialist on Thurs 7th Aug 2014 after waiting 7 days for it to be supplied from Germany. I drove about 100 miles & all appeared ok with no vibrations experienced. I was due to drive to York the following Tuesday, some 300 miles from home in Worthing. Split the journey & travelled some 200 miles to a Travelodge off the M1. All appeared ok. The following morning resumed journey to complete the final 100 miles. Travelled some 8 miles & got delayed in an accident for an hour & the car started showing signs of vibration from the rear end. This progressively got worse to the point the rear end vibrated every time I put my foot on the accelerator irrespective of the speed & stopped when I removed it. Exactly the same symptoms I'd experienced prior to getting the propshaft changed.
I reduced my speed down to 50 & limped into York. After leaving the M1 I pulled over & felt the rear discs which were very hot! My partner tracked down an Audi specialist in York who said bring the vehicle straight over which I did after navigating York's congested one way system to find our b&b.
The Audi specialist stripped down the brakes but said they were fine & he only experience the vibration once during the test run which he couldn't repeat. I collected the vehicle & drove it back to the b&b & left it there until Friday when I decided to give it a run out to Harrogate. I'd been driving about 6 miles when it started vibrating again. I took it back to the specialist where they experienced the same symptoms. They put it up on the ramp & checked the rear wheels, bearings, drive shafts but no sign of the cause & they didn't have the opportunity to strip things down.
Luckily I’ve got relay service so I got relayed back to Worthing yesterday as I wasn't going to risk further damage or cause an accident getting home.
I'm at my wits end & haven't thought about anything else during my stay in York much to my partner’s dismay & annoyance.
I don't think the vibration is caused by the rear diff as I don't get any loud thuds or noises coming from the rear which I would expect if it’s the rear diff. To me I think it’s the propshaft but it’s a brand new from Audi & therefore wouldn't expect it!
I'd really appreciate ant guidance or offers of advice obviously I'm going to get the propshaft checked out but I reluctant to take but vehicle to Audi just in case it’s not & get stung with a huge bill which I can't afford to pay!
I've have read quite a few articles relating to B6 owners experiencing similar problems to mine but haven't discovered the cause of the fault as quite often the conclusion or outcome hasn't been posted!
I have anAudi A4 B6 2.5 tdi QuattroSport Avant Auto with about 150k on the clock. About May this year I started experiencing vibration from the rear when I applied the accelerator. Initially is was intermittent but became more permanent & tended to be about 30 mph or greater. The first thing I did was to get my wheel balancing checked & I also get my 4wheel alignmentcheck twice a year. This made no difference. My Audi specialist mechanic suggested it could then be either the rearwheel bearings(which were ok) or the propshaft. Everything pointed to the propshaft, which he removed & thought it had excessive play in the centrecv joint, similar to what he had experienced with BMW's, which needed changing. I sent the propshaft to 2 independent propshaft specialists who rebuild Cayenne, Touregs & Q7 propshafts & both agreed the centrecv jointhad excessive wear which could explain the vibration symptoms I was getting. Unfortunately neither of these specialists could obtain genuine replacementAudi partsas Audi don't allow them to be sold individually on the open market even though my vehicle is 11 years old. I was left with 2 options, fit one from a breakers or pay Audi £1100 for a new one!
Not keen fitting one from a breakers, as it could be worse than mine, but I couldn't locate one anyway due to having an auto box, so left with getting it from Audi.
Got the propshaft fitted by my specialist on Thurs 7th Aug 2014 after waiting 7 days for it to be supplied from Germany. I drove about 100 miles & all appeared ok with no vibrations experienced. I was due to drive to York the following Tuesday, some 300 miles from home in Worthing. Split the journey & travelled some 200 miles to a Travelodge off the M1. All appeared ok. The following morning resumed journey to complete the final 100 miles. Travelled some 8 miles & got delayed in an accident for an hour & the car started showing signs of vibration from the rear end. This progressively got worse to the point the rear end vibrated every time I put my foot on the accelerator irrespective of the speed & stopped when I removed it. Exactly the same symptoms I'd experienced prior to getting the propshaft changed.
I reduced my speed down to 50 & limped into York. After leaving the M1 I pulled over & felt the rear discs which were very hot! My partner tracked down an Audi specialist in York who said bring the vehicle straight over which I did after navigating York's congested one way system to find our b&b.
The Audi specialist stripped down the brakes but said they were fine & he only experience the vibration once during the test run which he couldn't repeat. I collected the vehicle & drove it back to the b&b & left it there until Friday when I decided to give it a run out to Harrogate. I'd been driving about 6 miles when it started vibrating again. I took it back to the specialist where they experienced the same symptoms. They put it up on the ramp & checked the rear wheels, bearings, drive shafts but no sign of the cause & they didn't have the opportunity to strip things down.
Luckily I’ve got relay service so I got relayed back to Worthing yesterday as I wasn't going to risk further damage or cause an accident getting home.
I'm at my wits end & haven't thought about anything else during my stay in York much to my partner’s dismay & annoyance.
I don't think the vibration is caused by the rear diff as I don't get any loud thuds or noises coming from the rear which I would expect if it’s the rear diff. To me I think it’s the propshaft but it’s a brand new from Audi & therefore wouldn't expect it!
I'd really appreciate ant guidance or offers of advice obviously I'm going to get the propshaft checked out but I reluctant to take but vehicle to Audi just in case it’s not & get stung with a huge bill which I can't afford to pay!