Bigdave1230

I’ve heard of a fault on Audi diesels which can happen when you try to jump start them on a dead battery. There’s a relay that fails the tell tale sign is the glow plug light doesn’t come on when you put the ignition on. My mate told me about it ages ago but can’t remember where he said it was 🤔 I think he said it was somewhere by the steering column but I’m not sure. See if your light is coming on or not and if needed I’ll message him to find where it is.

Sounds like the auxiliary heater is on. They are renowned for going wrong normally locking up and stopping working not staying on though. 🤔 I think the fuse for it is in the passenger side end of the dashboard behind the end panel when you open the door. Try pulling it out and see if it stops. The heater is behind the wheel arch lining just in front of the passenger door

If you have a button in the back to lower the car for loading then it has air suspension. There was a post on here a few months ago with somebody who couldn’t get the ride height options on the mmi screen when pressing the car button. I think it was a faulty module but I’m not sure. Have a look back through the posts.

Do the electric seats still work? If they are heated does the light work on the dash board?

You need vcds to unlock the sat nav to get the disc out as they were locked from the factory to prevent the discs getting nicked out of hire vehicles etc but it was probably so you had to go to the main dealer for the newer discs. What does the sat nav say on the screen when you press the nav button?

Hi I managed to get an hour the other day to look into it a bit more and can confirm it appears the rear of the car is in off-road or lift mode and the front in comfort due to (I believe) a faulty level sensor. Using vcds the fault code 01400 suspension level control 001 upper limit exceeded intermittent freeze frame error code 66. Is in there. I tried going into adaptation to check what it thought the individual height levels were to pin it down to which corner was upsetting the system but it wouldn’t let me in saying something along the lines of error 22 test parameters not met 🤔 or something similar. Does anybody know another way to read what the car thinks the levels are using vcds? The current height of the car from the centre of the wheels to the wheel arch is front L = 445mm , front R = 445mm , Rear R = 500 mm , Rear L = 510. Cheers Dave.

does anybody know where the suspension level sensors are located. The rear of my car is stuck in a higher position than the front which is putting the orange suspension light on after driving for 5 mins or so. Ive not had time to investigate fully as I’m really busy for the min but think it’s going to be a sensor as the compressor is working.

The hose for the rear wash wipe connects to the rear wiper motor the squirts through it but the seal goes and ends up corroding the motor making it stop working. Tell tale sign is the water doesn’t squirt out or is very weak at firing onto the rear screen. Then the motor fails. Stupid idea in the first place really!

Hi I didn’t replace the earth but put another one on it from the earth point ( on the passenger side bulk head which is used for jump starting) to the inlet manifold

Mine did something similar earlier in the year. It was parked on the drive fine but levelled itself as it aims down slightly. When I reversed it off the drive the whole suspension dropped to the bump stops and the green and orange suspension light started flashing like crazy. It wouldn’t raise at all and the compressor kept cutting off due to overheating. I had the car on a ramp and checked everything to eliminate the problem and finally came to the conclusion that it was either the pump or the valve connector block that is situated just behind the compressor. I was 90% sure it was the valve but could only find a place in Germany that did them other than audi and couldn’t wait for one to be shipped over so booked the car in for a diagnostic at audi for £70. Then on the morning it was due to go in I got in the car and the suspension lights were on the dash to say it was trying to pump up then after 30 seconds the car was back to normal height and working fine again so cancelled the appointment. My mate thought it might of been moisture in the air lines and when the car tried to release pressure to level the car when coming off the drive had frozen the valve open ( it was a very cold morning). Have you tried jacking one front corner of the car up at a time when the compressor is on to see if it raises the other side. This should help diagnose a leaking airbag. If the other side raises up to normal height squirt soapy water around the bag and strut. You shouldn’t see and bubbling. The compressor and valve are located under the drivers floor behind a plastic cover and are only accessible from under the car. 🤔 oddly a few weeks ago my wife went to the supermarket and reversed onto a high kerb on a bit of a funny angle that made the car lower itself on all four corners to the bump stops on the way home. When she got back I looked at it and all the mmi selections were greyed out. Turned the car off and brought the shopping in and left it for ten mins and when I came back out to it it was back up again. It seemed to not be able to understand the difference in height on one wheel so reset itself to go again. Do you have any warning lights on the dash?

Dead easy mate. Put the clip on the arm with the hole in it, so the plastic is sandwiched between the clip the offer the arm back up. Then using a pair of grips squeeze back onto the metal ball

Or press the car button again

Press the bottom left button just to the left of the mmi knob. It’s 10mm away from the main scroll knob

Your pressing the settings button/option and going to far into it. All you have to do is say for example you have pressed the radio button on the centre console it will have a red light next to that button and the mmi display on the centre console will display the radio stations. Press the car button once on the centre console to the left of the gear selector. The mmi display above the centre console should now show you a big picture of a q7. To the left of that q7 it will have 5 blocks. Some of those blocks will be solid orange. That’s what height the suspension is at that moment. To the right of the picture you will have 5 options in a semi circle (dynamic, automatic, comfort, off-road and lift which are equal to the blocks on the other side. Don’t press any other buttons on the centre console. You change it’s height by turning the mmi knob on the centre console. You should see a small arrow next to the picture of the q7 move when you turn this knob. When the arrow is pointing to the height you want press the same mmi knob down that you used to move the arrow. The car should then start to raise/lower to what you selected. If all your options ie off-road, comfort etc are grey in colour when the engine is running and the doors are closed then you have a fault on the suspension but this would put a orange or green warning light on the dash board that you would of noticed.

The icon in the middle of speedo and rev counter is just for info. Press the button on the underside of the right hand stalk to change to range, mpg, speed etc. Press car on the centre console then on the big mmi screen you should see a picture of your car with an arrow highlighting which ride setting it’s on. Scroll using the mmi knob to which height you want then press the knob to select. Please note the car should be running and the door closed otherwise it will grey the icons out so you can’t select. Lift can’t be accessed if your moving at faster than walking pace and off-road will lower itself to comfort when you are going fast.

On amazon type - windscreen wiper repair clip and when the results page pops up it’s the third one down by a company called X8R. It’s £7.99 now. There are others available but that’s the one I bought and worked. Made from stainless so very durable. Hope this helps!

Cable ties just snap as the linkage moves too much and the ball part of the linkage is Hardened and very difficult to drill on the car. I looked at this as I was very reluctant to buy the full linkage. I will find the part on amazon now and list. Mine hasn’t missed a beat since putting it on. Works like brand new. I can’t post a pic on this due to an upload limit but you should be able to fathom it quite easily.

It sounds like you have changed quite a few bits already (starter, relays) so it’s narrowed down a bit but even so you could be changing parts until the cows come home without hitting the nail on the head and meanwhile the Q7 has turned into the 6 million dollar car! Audi dealers do a diagnostic only service for about £60 which I’d be tempted to do before changing anymore parts.

If it won’t turn over at all then if you take the key out and put back in then it will then I don’t think it’s going to be battery related. It sounds more immobiliser related. There’s a start/access authorisation module on the steering column that the key reader talks to when the key is put in that would cause it to not turn over if it thought it was the wrong key etc. I’m guessing you’ve had a diagnostic check to see if it’s thrown any codes up. If you have a spare key I’d try using that to eliminate a key transponder issue.

🤔 Roughly how long after you turn the car off is it before it won’t start again

When you say you’ve done the earths do you mean you’ve cleaned them or tried a separate earth from the engine direct to the body. Have you checked the battery voltage with a multimeter. When the engine is running it should be just over 14v. Does everything electrical work on the car (ie you don’t have a electric window that doesn’t work or something like that?

Sorry heading Is “Slow Start”

Mine was similar. Drive to a petrol station and the car would turn over like the battery was flat. Turn the ignition off and try again and maybe 2 or three time later it would fire up like normal. It was a corroded earth. I put an earth between the earth point where you jump start the car and the engine manifold and it’s been fine ever since. Audi said it’s quite common but people think it’s the starter so when Audi replace the starter they clean the earths at the same time it’s in the to do list issued by Audi uk. There’s a thread on the next page with the heading “poor start”. Have a look lower down. This site won’t let me post pictures because of a upload limit unfortunately so can’t show you mine

When it won’t start does it turn over fast but not fire or slow like the battery is flat?

😂 sorry it’s S Cars in Oldham