S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Where is the suspension compressor's relay

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Old 09-21-2010, 01:15 PM
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isa
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s550
Where is the suspension compressor's relay

Can someone tell me where compressor's relay is for S550 (W221). Image will be helpful.

Thanks
Old 09-21-2010, 01:37 PM
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'71 Pinto
Front SAM (engine compartment), relay B
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Old 09-21-2010, 01:46 PM
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isa
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Thank you.

Can you please also help me to locate the "leval sensor(s)" ?

Thanks
Old 09-21-2010, 02:00 PM
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We think the compressor overpressurizes because of faulty relay.

Signs:
1. When car is parked it looks leveled/normal
2. When car is started, it raises 0.5 inch and stays there
3. When car is parked and key removed, we can hear the compressor releasing air and it lowers about 0.5" and stays there even overnight.
4. Rise vehicle function button works correctly

Any input is appreciated.

Thanks
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Old 09-22-2010, 12:11 AM
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Originally Posted by isa
We think the compressor overpressurizes because of faulty relay.

Signs:
1. When car is parked it looks leveled/normal
2. When car is started, it raises 0.5 inch and stays there
3. When car is parked and key removed, we can hear the compressor releasing air and it lowers about 0.5" and stays there even overnight.
4. Rise vehicle function button works correctly

Any input is appreciated.

Thanks
My car does the exact same thing?
Old 09-22-2010, 06:21 AM
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SL500 2003 previous/ E350 2007 actually
Maybe it's normal!!! Our fellow members could help us with their experience!!!

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