ESP Problem
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Member
Joined: Jan 2014
Posts: 157
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From: Atlanta, GA
2008 C63, 2008 ML550, 2014 KTM 500 XC W, John Deere 990
ESP Problem
I put new tires on the rear of my car yesterday which were an exact replacement for what was already on the car. Now I get the ESP light on long turns like highway ramps. If I am in the turn long enough I get the ESP unavailable fault until I restart the car. The tires were not replaced at the dealer and they lifted the car instead of one tire at a time on a jack. The tread direction is correct and so is the pressure. Any thoughts?
Last edited by Euler; May 23, 2015 at 07:30 AM.
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From: Houston - Clear Lake
C63 coupe, Z3M Roadster garage queen
There's been some speculation that a difference in rotational speeds between the front tires and rear tires may cause ESP to act up, and that a difference in tire size between front and rear may be enough to trigger it. I don't know that it's ever been proven, but just in case - are you running stock tire sizes?
Another long shot possibility: brand new tires are always a little oily. Tire testers have a break-in process to scrub that off before they start gathering data. Are you finding it easier to spin tires than before? How long have you been driving on these?
Another long shot possibility: brand new tires are always a little oily. Tire testers have a break-in process to scrub that off before they start gathering data. Are you finding it easier to spin tires than before? How long have you been driving on these?
Thread Starter
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Joined: Jan 2014
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From: Atlanta, GA
2008 C63, 2008 ML550, 2014 KTM 500 XC W, John Deere 990
Thanks for the reply. Tires are stock size. Also have P30 and LSD. I noticed that the suspension feels a bit more wobbly ofter the tire change. I have put about 100 miles on the tires. Lug nuts are tight. I watched the work and nothing other than the expected occurred. Are there any precautions needed for lifting the car off the suspension? Needless to say, I have put several sets of tires on the rear. This time though is a different shop, but the procedure is the same.
Thread Starter
Member
Joined: Jan 2014
Posts: 157
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From: Atlanta, GA
2008 C63, 2008 ML550, 2014 KTM 500 XC W, John Deere 990
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From: Dallas, TX
2018 GLS 550
Hate to tell you, that's not stock size... stock rear should be 255/35/18. This should not cause a problem though, as I'm running stock fronts and 275/35/18 rears, and have not had any issues like yours.
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Joined: Aug 2013
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From: Atlanta, GA
2009 C63
I'd take it back to the shop and have them double check everything. Make sure nothing was damaged by the lift, or during the install. It sounds like your ECU is reading enough disparity between the rotational speeds to freak out.
How old are your front tires? If you've gone through several sets of rears, and your old tires are that low and have hardened over time, perhaps there's enough difference in rotation when you're turning to make the ECU think there's actual slip happening when it's just instead a significant difference in tire diameters.
But I really have no idea what I'm talking about, so I'd still take it back to the shop just to double check.
How old are your front tires? If you've gone through several sets of rears, and your old tires are that low and have hardened over time, perhaps there's enough difference in rotation when you're turning to make the ECU think there's actual slip happening when it's just instead a significant difference in tire diameters.
But I really have no idea what I'm talking about, so I'd still take it back to the shop just to double check.
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From: Atlanta, GA
2008 C63, 2008 ML550, 2014 KTM 500 XC W, John Deere 990
With the window down I can hear the rear tire scrubbing in turns right when the ESP warning illuminates. Might be an issue with the LSD.
Last edited by Euler; May 26, 2015 at 03:30 PM.
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From: NY
E63S | X5
My only guess is the fronts are rears are off by JUST enough to cause your issues. Sounds like it because this is happening to you in long turns.
This might be terrible advice, but if you're not ready to buy new front tires as well try doing a good burnout to wear a little off the rears. Might gets things back in order. Again, however, I admit that this probably isn't the right thing to do but at least it will be fun and could work.
This might be terrible advice, but if you're not ready to buy new front tires as well try doing a good burnout to wear a little off the rears. Might gets things back in order. Again, however, I admit that this probably isn't the right thing to do but at least it will be fun and could work.
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C63
It's the tire brands between front and rear. Tire sizes vary slightly between different manufacturers. I had a very similar problem with my 2006 Infiniti FX 35, I replaced the rear tires with a different brand same OEM size but taking long off ramps that was a curve I would get the VDC light flashing accompanied by the spring popping sound from ABS. Tire shop didn't know what was wrong so finally I just replaced the fronts with same brand and that solved my problem.
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Joined: Jan 2014
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From: Atlanta, GA
2008 C63, 2008 ML550, 2014 KTM 500 XC W, John Deere 990
It's the tire brands between front and rear. Tire sizes vary slightly between different manufacturers. I had a very similar problem with my 2006 Infiniti FX 35, I replaced the rear tires with a different brand same OEM size but taking long off ramps that was a curve I would get the VDC light flashing accompanied by the spring popping sound from ABS. Tire shop didn't know what was wrong so finally I just replaced the fronts with same brand and that solved my problem.
