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2015 P85D Air Suspension failure

Nodelek

New Member
Supporting Member
Nov 15, 2022
3
0
San Diego
Last week, I saw an warning light on my 2015 P85D (98K miles) that there was a problem with my Air Suspension. When I tried to raise or lower it, it failed. I noticed that the car was extremely low so I got the car into the service center the next morning.

To make a long story short, they tell me that the whole front air suspension needs to be replaced (front left air spring, front right air spring & front compressor). Each of the 3 components with labor is over $1100 for a grand total of just under $3500. When I ask the root cause, I'm told the senior technician says "wear & tear". Since the car was not in an accident, is it realistic to think that ALL THREE components failed simultaneously? I'm skeptical and wondering if I could be dealing with a lazy diagnosis where they just want me to replace everything rather than figure out the minimum of what went wrong.

Thoughts? Experiences?
 

Doanster1

Active Member
Feb 14, 2018
1,270
691
Oregon
Only the front end was low or all four corners? Either way, if it were me, I’d ask for more info on why the struts need replacing, ie did the tech notice both were directly leaking vs the air lines, etc? Most likely your compressor does need replacing and/or valve block. I wouldn’t authorize strut replacement until they provide better answers.
 

Doanster1

Active Member
Feb 14, 2018
1,270
691
Oregon
Our P85Ds have weird SAS logic. When my compressor died, the front end would slowly lower down over the course of a few days while the rear was jacked past Very High.
Struts don’t normally fail in pairs so again, more info from them or just replace the compressor first.
 

Nodelek

New Member
Supporting Member
Nov 15, 2022
3
0
San Diego
I liked your suggestion and requested they replace the compressor first before the air springs (my car sits while waiting for parts) and I get this response (verbatim):

“It has been identified that the air spring itself and has a leak. The compressor has failed due the air leak which is why are a are suggesting replace the three parts. The spring is required at this time and we advise replacing those in pairs”

Opinions? Is any of this legit or complete BS? I’m dealing with a nice kid at the service center who’s just trying to do his job, but he’s only been there 5 months. I don’t want to give him a hard time, but I don’t want to spent $3,500 if I don’t have to either! 😃
 

Doanster1

Active Member
Feb 14, 2018
1,270
691
Oregon
They should’ve stated that to begin with vs “wear and tear”. If it were me, I’d ask for more details like where the leak is (body, o-ring, or the fitting). If it’s at the fitting, you can replace that yourself for a few bucks.
Also, if one strut is bad and leaking, that one corner should’ve dropped, not the other as well. In general, you would want to replace in pairs so that you have even ride stiffness vs one new and one old strut, but it’s your call. If you do both, I’d ask for the good one back and perhaps you can recoup a little $$ from selling it.
 

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