Sid2020
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Ideally you need someone who can look and understand the live data readings that a good diagnostics can provide and try to get the fault to occur while doing this to see what changes
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2 types of auxiliary heating available, common was a electric heater that goes inside heater box behind dash that gives some heat until the diesel engines warm up, other option is a diesel heater that keeps the cabin warm when engine is not running, first type is most common and can’t see why this would cause a aircon problem.
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Will Definitely need to Drop the bumper corner which is not to hard a job, I would source a 2nd hand light as while getting the headlamp Lense of is physically possible it is almost impossible
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When was the last time you got it recharged, you might be right on the limit of ac pressure sensor shutting down the system, remember the system turns from liquid into Gas and back again so a change in pressure is inevitable
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The clutch’s are pretty reliable
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With the aircon turned on the aircon pulley has a centre section of the pulley that is controlled by a electronic clutch, it will operate for 20-30 seconds then disengage for 20-30 seconds, you will here a click when the clutch kicks in
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How have you fixed this. you could swop ballast and bulb from side to side and see if the fault moves with them or remains in the same headlamp. If the fault remains in the same headlamp then it narrows it down either a wiring fault inside the headlight which could be checked easily, failing that it could be a signal fault from the cars module to the headlamp which would require tracing wires from plug to module
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This is a example of what I mean
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If you have the plastic tube in the back of the foam then it must be kept as it’s for the active bonnet. The foam is also there to protect pedestrians from the crash bar as part of the active bonnet system. Some older Audi’s had a thin textured plastic cover that covered the foam behind the grille so this might be a good option
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I cans access your files but The evaporator is the main ac component behind the dash and changes fluid into gas to generate the chilling effect and is usualy silent, I have came across noisy heater boxes when ac in engaged but nothing to load. Too much gas in the system can cause a grinding noise from the ac pump at higher revs but this would be very noticeable
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You need a good auto electrician for this not a workshop, from your description I would think your steering lock module is not powering up on request and this module is part of the security handshake required to enable engine crank,
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When your aircon is on and blowing warm check the pulley to see if the clutch is engaging, other common culprit could be a tired solenoid on the pump, these can be replaced separately on many models
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If anyone does have difficulty with there ABS module with this fault reflashing it using Odis usualy solves the problem
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The longer you drive with a defective clutch you run the risk of damaging your DMF which would cost you alot to replace, I would change it sooner rather then later. My biting point with old clutch and new clutch is smack in the middle. Sacs clutch’s like what will be fitted to b9’s shouldn’t experience bite point travel, they usually just start slipping once all travel is used
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Sound coming from Vacuum/Oil pump? Or bad belt tensioner?
Sid2020 replied to LinasO's topic in Audi A4 (B9) Forum
Have you checked your serpentine belt as may be contaminated with antifreeze which would cause slippage under load.
