Hi members,

my car is acting weird, i locate any error codes via Xrools scanner and Thinkdiag, as showing in the video it is dancing 😂
any mechanical explanations please
also to raise the car after sus bleed, shall i drive the car on 4 pcs of wood if i understand correct or how to please.

thanks for all the help in advance

 

start thinking about vacuum leaks

 

hope no engine out is required, or could be camshaft sensors ?

and to raise the car ?

 

In camshaft sensor malfunction you should get error indicating that in scan - and you said your scan is clear - so I am speculating that this is a symptom of start of leak issue: all systems works fine - so no error - but the leak impacts the idle rpms anyway.

Pls share what was the cause when you will get the answer. Indeed that bahaviour does not need to be caused by leak - but you know the statistics on this forum :/

 

thanks for your reply, could you help me with the procedure for raising the car when compressor is not kicking.
sorry for my bad English

 

You mean you have the car suspension down? to be sure - it has nothing to do with your rpm fluctuations and this is another topic.
If you say compressor is not running, have you checked electrics (fuse f6 in the trunk? connection/plugs etc) , have you checked compressor on the bench? or short connection +12v to be absolutelly sure if it is really a compressor issue?
If it is really dead, then there is no easy emerg procedure to raise your car - you need to read Johnnys suggestions to the post I wrote some time ago about emergency procedure for air suspension.
What I would do is to buy a used replacement of compressor to just swap and eliminate at least this problem, then go back to the rpm fluctuations.

 

I know it has nothing to do with rpm fluctuations, I just fixed the driver side shock and the car is down and compressor won’t start, front of the car is down and I don’t understand the procedure on the forum with wood under tyres to activate the compressor.

 

you put the car in jack mode before any job?

are you sure the level sensor is connected right?

have you run vcds and check for errors / try some output tests.

what actually you did? you replaced whole strut? you tried to fix existing strut leak?

pls give me the link to the posts about piece of wood

 

 

yes the level sensors are connected, I don’t have vcds and diagnostics shows angle sensor error.
I just rebuilt the driver side and installed new o rings and sealer.
I am searching to replace the air sus with coils. Checking online as Audi A8 D3 shares the same parts with Bentley also air suspension, couldn’t find an OEM coils sus for Audi D3 E4 but found out Audi A8 D2 has coil sus and wondering if they would fit the Bentley 😅 cuz strutmasters coil sus is very expensive $1500 !
any suggestions

 

1eapplebaum - any correlation why compressor wont start when susp is down and as you write will start when the car is lifted?

 

I think when the height sensors are bottomed out this is seen as a fault or failure so the ECU shuts the system off. Perhaps JHotspur has a better explanation.

 

is it necessary to lift the front of the car while on blocks of wood so the compressor kicks in ?
also what’s the height of blocks should be used?

thanks for the help

 

Your welcome,

Block the wheels high enough to pass a floor jack under the frame. Lift at the flat frame space rear of the front wheels. You can leave the blocks under the wheels. Lift the front end up with the jack 12 -16 inchs. Start the car and hopefully the struts air up. Remove the jack and drive off the blocks.

 

if I’m following you correctly, I need 2 floor jacks to lift both front wheels, as driver side is totally down and passenger side is almost fully down.