- #4 of 26
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Re: Speedometer [irmob]
by walter48
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Jul 16, 2007 (8:18 am)
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Replying to: irmob (May 14, 2007 11:27 am)
I just purchased a 2007 A4 and find I have exactly the same problem. GPS says 66 MPH while speedo says 70 MPH (about 6% high). Has anyone noted whether of odometer is also off 6%? On a 36,000 mile lease this is 2160 miles. I could be charged over $400 for miles I never drove.
Walt
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- #5 of 26
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Re: Same Problem [dan48646]
by zmp
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Jul 18, 2007 (8:32 am)
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Replying to: dan48646 (May 14, 2007 2:45 pm)
Hi there. I just read your posting where you mentioned you had to replace the O2 sensor. Did you notice anything wrong with the car before replacing the sensor? Have you noticed any improvement in the car after replacing the O2 sensor?
I'm asking because I just bought a 2007 A4-2.0T Quattro 6M this month, and I noticed the car is experinecing a turbo lag (delay) and no low end torque. I test drove another car same model different color and didn't notice the turbo lag at all. I took it back to the service department, they drove both cars (test drive and mine) and said there was nothing wrong with my car but the only difference they noticed was that mine drives more like an automatic because you can't feel the change of gears  I like feeling the kick when switching gears up and down. Please let me know. Thanks.
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- #6 of 26
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Re: Speedometer [irmob]
by psiklops
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Dec 04, 2007 (1:44 pm)
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Replying to: irmob (May 14, 2007 11:27 am)
I have a 2008 A4 with the same problem. I first noticed it was off when my GPS said 73 and the speedometer said 77. I checked with the dealership and they said they can't look into it based on just a GPS reading. I then found one of those police radar units that sit by the side of the road and tell you your speed. Sure enough, it said 56 while my speedometer said 60.
I called the dealership and told them to check it during my 5,000 checkup. They checked and said that it was operating within 1 or 2 mph of the other two cars they drove it against. Well, of course they read the same - they all came from the same place! This is despite the dealerships claim that the speedometer is "precision calibrated and sealed" at Audi's factory. Audi should recognize that they're not as "precise" as they think they are.
So now I just have to do math every time I go down the road...
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- #7 of 26
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Re: Speedometer [psiklops]
by shipo
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Dec 04, 2007 (2:59 pm)
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Replying to: psiklops (Dec 04, 2007 1:44 pm)
FWIW, many German cars (Mercedes, BMW, VW, and Audi to name a few) are optimistic by a few MPH about how fast you are going, that said, the odometer and the trip computers are usually dead on accurate.
Best Regards,
Shipo
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- #8 of 26
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Re: Speedometer [psiklops]
by irmob
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Dec 06, 2007 (1:01 pm)
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Replying to: psiklops (Dec 04, 2007 1:44 pm)
When I told my dealer that my 2007 A4 speedometer was reading 70 when I was only going 67, they replied that the industry standard is to be within 10% of actual speed, so my speedometer is OK. I realize now that this is the first car in which I have ever checked the speedometer, so all of them have likely had an error in them. At least now I know how to judge my speed.
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- #9 of 26
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Re: Speedometer [irmob]
by walter48
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Dec 06, 2007 (2:07 pm)
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Replying to: irmob (Dec 06, 2007 1:01 pm)
The reply from the dealer is a bunch of crap. I've had a GPS for years and used it on a lot of American "cheaper" cars. It was ALWAYS within 1 MPH. I have a new Toyota RAV4 and the speedo totally agrees with my GPS while my much more expensive AUDI speedo reads 5 MPH high at 70 MPH. This is unacceptable, I thought German engineers were into precision. When I'm going to bring my A4 in for my 5K check I'm going to tell the dealer to fix this problem. If they tell me that the industry standard is 10% accuracy I'm going to ask for the AUDI specs in writing. I want to hear this from the factory. Also if it reads fast then my 36K miles lease is only 33K miles. That is fraud. I'm going to ask them to explain that.
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- #10 of 26
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Re: Speedometer [walter48]
by shipo
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Dec 06, 2007 (2:12 pm)
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Replying to: walter48 (Dec 06, 2007 2:07 pm)
Like I wrote earlier, every German car I've evern owned or driven has been optimistic in the Speedometer department. I believe they are actually designed that way on purpose and as such, your Audi dealer won't be able to "fix it".
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- #11 of 26
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A4 spedo.
by steve150m
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Dec 22, 2007 (10:07 am)
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I have an 03 A4, 04 S4 and a 01 Jetta all with spedo. readings of 4 to 5 mph high. All were checked with gps. computer in car seems accurate. A good friend of mine who is in the automotive OEM business says by law, spedo accuracy must be +or - 4 percent for cars sold in the U.S. When I compared my odometer to the freeway markers my car only recorded 9.6 miles over a 10 mile stretch. The above speed check was at an indicated 80 mph.
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- #12 of 26
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Re: Speedometer [irmob]
by dspaul
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Apr 27, 2008 (10:49 am)
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Replying to: irmob (May 14, 2007 11:27 am)
Same problem here. I've owned Audis for years and the speedometer has always matched trip trip computer exactly, on A4'4, A6's, even the current A3 loaner that I'm driving. I recently purchase an "Audi Certified" 2005.5 A4 2.0T 6MT with 32,000 miles on it. With in 5 minutes of picking up the vehicle I noticed that he speedometer was reading high (+5mph) when compared to the trip computer. This was tested w/ the cruise control on at highway speeds of 60-65mph. It was also verified against a roadside radar speed check, and an external GPS unit. All matched the trip computer, and the speedo reads +5-6 mph. The car is currently at the dealer while they try to figure out the problem.
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- #13 of 26
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Re: Speedometer [dspaul]
by walter48
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Apr 27, 2008 (11:39 am)
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Replying to: dspaul (Apr 27, 2008 10:49 am)
Let me know what the dealer says. I brought my A4 in at the 5k check and told them to fix the speedo also. They checked it with radar ar 40 mph and said to speedo was reading 42 so they did nothing. I've always checked mine at highway speeds and at 70 the GPS says 65. I did the same test with the GPS reading 40 mph on cruise control and the speedo reads 43 mph. I have a ;ease car and if I actually drive 36,000 miles the odometer would say 38,000 and at 20 cents/mile that would cost me $400. So please let me know what your dealer says.
walt nikesch.com
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