Audi Q7 4L repairs advice

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Leighton82

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I recently posted about a dud Q7 4L I was sold by an unscrupulous private seller. My post wasn't very specific so I wondered if I could get some advice.

Basically, I might try to get some repairs done, but using aftermarket or refurbished parts. I know they are much more prone to failure than OEM parts but I can't afford the latter and if I could get 2 years out of the repairs that would be enough. Don't expect any miracles on a 16 year old car and I'm not paying £2k for genuine Audi parts on a virtually worthless car.

To help me figure out costs I'm wondering if any of you informed Audiphiles can offer advice on how many hours of labour the following replacement parts would take to fit, as an approximation:

1. Lambda probe sensor 1 bank 1
2. Inlet manifold flaps - swirl flaps open repair kit
3. ABS control module
4. Brake boost potentiometer diaphragm
5. Air suspension compressor and relay
6. 2 x front air suspension level sensors
7. Turbo actuator wastegate
8. 1 x parking sensor (front middle right)
9. Tank flap solenoid
10. Rear wiper motor

I would hope not all of these things need replacing but it's a worst case scenario (I think).

Would really appreciate any assistance people can offer. Thanks!
 
Given this Q7 is the same age as my b7 i find it hard to accept there are that many malfuctioning parts all at the same time to be honest
Ok a few yes such as the parking sensors swirlflaps , wiper motor but all those parts in the list, i'm not convinced .

I think it may be worth looking into a possible electrical fault in a module or relay to see if there is a common single point of failure thats causing all those faults to be logged.
 
I had a very similar issue that just appeared one day and a whole list of failure parts and nonoperational functions were logged in vcds.

I spent some time looking at the problem and I was racking my brain, no way did I need a new fuel pump, ABS pump etc , there were so many faults.
when one looked at the vcds printout there was a clear pattern to the errors, and they were all electrical-based faults, and I knew some parts were not faulty as they were new.
At one point the car ran so bad I was about to offload it, a few days it wouldnt start or backfired and the dash lit up like an Xmas tree.
but persistence paid off and problem was solved.

with some input from other chaps in the B7 forum and some web searching the problem became clear and it was two specific relays that were failing, £30 worth and it solved all the errors.

I'm not saying that's behind your problems but it's a possibility, just explore all avenues, and see if there are any known issues with your q7 year, my b7 fault was a documented issue but i had to search for the info.
best of luck chap.
 
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Charlie Farley said:
Given this Q7 is the same age as my b7 i find it hard to accept there are that many malfuctioning parts all at the same time to be honest
Ok a few yes such as the parking sensors swirlflaps , wiper motor but all those parts in the list, i'm not convinced .

I think it may be worth looking into a possible electrical fault in a module or relay to see if there is a common single point of failure thats causing all those faults to be logged.
Click to expand...
Cheers! I suspected the same but the damn Audi independent I took it to couldn't be bothered and didn't even try. I'd wanted them to check battery, relays, and fuses as a starting point. I think I will go down that avenue via an auto electrician check before giving up. The front wheels do look a bit sunk into arches but I have heard that a 40amp fuse and relay can sometimes be the cause. Hopefully I will be lucky. If not, I'll get an aftermarket part based repair priced up. Just so hard to find mechanics you can trust. A nightmare in fact. I had one but he packed it in during COVID.
 
do you have access to Elsawin?

If not would be well worth getting a copy as it gives all the info you will ever need on every single function and replacement procedures etc.
What voltages , self testing etc.
 
I was going to have a quick look but will need full car details to get the correct data for your Q7.
 
Hi again. Hoping to get an auto electrician out this week to check battery and all major fuses and relays. That feels like the starting point. Out of everything the ABS/traction stuff and air suspension worry me most as they can be soooooo many different things. Air springs look crazy expensive.

Bit of advice on part numbers would be useful. Specifically for the following:

ABS module - think it's 4L061517 followed by a letter?

Parking sensor - thinn it's 4H0919275?

Tank flap solenoid - seem to get conflicting results on ebay so unclear

VIN is WAUZZZ4LX7D078243 if that helps.

Thank you.
 
Leighton82 said:
I recently posted about a dud Q7 4L I was sold by an unscrupulous private seller. My post wasn't very specific so I wondered if I could get some advice.

Basically, I might try to get some repairs done, but using aftermarket or refurbished parts. I know they are much more prone to failure than OEM parts but I can't afford the latter and if I could get 2 years out of the repairs that would be enough. Don't expect any miracles on a 16 year old car and I'm not paying £2k for genuine Audi parts on a virtually worthless car.

To help me figure out costs I'm wondering if any of you informed Audiphiles can offer advice on how many hours of labour the following replacement parts would take to fit, as an approximation:

1. Lambda probe sensor 1 bank 1
2. Inlet manifold flaps - swirl flaps open repair kit
3. ABS control module
4. Brake boost potentiometer diaphragm
5. Air suspension compressor and relay
6. 2 x front air suspension level sensors
7. Turbo actuator wastegate
8. 1 x parking sensor (front middle right)
9. Tank flap solenoid
10. Rear wiper motor

I would hope not all of these things need replacing but it's a worst case scenario (I think).
Showbox jiofi.local.html tplinklogin
Would really appreciate any assistance people can offer. Thanks!
Click to expand...
I think it may be worth looking into a possible electrical fault in a module or relay to see if there is a common single point of failure thats causing all those faults to be logged.
 
Last edited:
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