Home > Technical (L322) > Drops overnight, but NOT when battery disconnected |
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JayGee Member Since: 27 Jul 2021 Location: London Posts: 3170 |
Almost certainly a faulty height sensor which is giving an incorrect height value to the ECU which then tries to level the car after shutdown. Have a look at the 4x4 screen and see if one of the indicator marks is off level 2012 TDV8 Vogue (L322) |
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2nd May 2024 10:37am |
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Eirik34 Member Since: 16 Dec 2014 Location: Norway Posts: 437 |
Thanks Jay, will try that. Do you know if this also should be noticeable in the Gap IID tool? I used that tool to adjust the height just before I disconnected the battery, and the GAP IID tool was able to adjust the height with 10 mm down and up (all corners) without any problems. But maybe that could still be done with a faulty height sensor? L460 P550e AB SWB MY24
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2nd May 2024 11:47am |
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JayGee Member Since: 27 Jul 2021 Location: London Posts: 3170 |
Even better if you have the GAP tool. Do a guided calibration and see whay happens when left overnight? 2012 TDV8 Vogue (L322) |
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2nd May 2024 12:34pm |
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Eirik34 Member Since: 16 Dec 2014 Location: Norway Posts: 437 |
Hi Jay, I re-calibrated the height yesterday using the "Guided tour" in the Gap tool, and it didn't loose any height overnight. Couldn't see any obvious errors of the height sensors constants displayed in the tool during the process.
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6th May 2024 11:23am |
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will308f Member Since: 19 Apr 2022 Location: plymouth Posts: 358 |
problem could be a worn seal in a valve block had a similar problem myself ,got a valve rebuild kit from 4x4airseals.com around £18-20 takes about hour and half to two hours . |
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7th May 2024 3:26am |
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Eirik34 Member Since: 16 Dec 2014 Location: Norway Posts: 437 |
On Monday evening I replaced the relay for the air suspension, and the car has been parked since. No air leaks and car still levelled at the correct height for all 4 corners.
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8th May 2024 8:41am |
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will308f Member Since: 19 Apr 2022 Location: plymouth Posts: 358 |
well fingers crossed all sorted ,if so nice easy quick cheap fix |
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8th May 2024 9:43am |
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Vic Member Since: 05 Jun 2024 Location: Amstelveen Posts: 2 |
I have had the exact same problem since a week. has replacing the relay finally solved the problem for you? |
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5th Jun 2024 6:48pm |
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Eirik34 Member Since: 16 Dec 2014 Location: Norway Posts: 437 |
Yes, for our car it was just the relay. No "air leaks" (dropping suspension) since I replaced the relay. L460 P550e AB SWB MY24
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5th Jun 2024 9:27pm |
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TDV8 Paul Member Since: 30 Nov 2020 Location: Tadworth Posts: 223 |
Good fix- what made you look at the relay? 2009 (2010 MY) 5.0 Supercharged Autobiography
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6th Jun 2024 2:39pm |
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Eirik34 Member Since: 16 Dec 2014 Location: Norway Posts: 437 |
I recently (1 1/2 year ago) replaced the air compressor, and had kept the previous relay - thought that it might be the next thing to try, given that the car didn't lower when the battery was disconnected. L460 P550e AB SWB MY24
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6th Jun 2024 6:02pm |
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