Kept Driving With Petrol in a Diesel Audi allroad?
If you have travelled with petrol in a diesel Audi allroad, stop as soon as it is safe, turn the motor off and leave it off. Spotted early, it only very rarely leaves permanent harm, and sorting it out where you have stopped is still something we can do.
Petrol in Diesel comes out to wherever your Audi allroad has stopped, drains the fuel tank and cleans the petrol from the system. We leave when it's running again on fresh diesel.
Petrol in a diesel allroad: the symptoms to look for
It is usually a few miles before the signs show up, as with petrol in the tank a diesel allroad will often drive as usual at first. With petrol or AdBlue inside your fuel tank, these are the ones people usually notice:
- the motor is short of power, particularly when it has to pull
- lumpy running, or an erratic idle
- there's more smoke than normal from the tailpipe
- a warning light lights up
- once it stalls, it might not restart
If any of these started after you fuelled up, check your receipt to find out what went in.
Wrong fuel in your Audi allroad: what driving on it does
The fuel tank holds wrong fuel in your Audi allroad where it is till it's drawn out by the motor. After you drive, it goes through the injectors, your fuel filter and the injection pump. Diesel lubricates your pump and the fuel injectors as it runs through them and petrol dilutes it, so the further the allroad is taken, the more of your fuel system the blend gets to.
This is the reason to stop as soon as you can and not complete the trip. A car that's stopped early normally needs no more than a drain and a clean. What can cause damage is covering a long distance on contaminated fuel.
We come to where you have pulled up
There's no reason to get the allroad anywhere. The roadside and outside your house are both spots we come to, and so it does not need starting or towing.
On a main road, switch on the hazard lights, then find somewhere safe to wait clear of the traffic.
When you phone 0333 366 0103, let us know where you are, which allroad it is and roughly how far you travelled. If the badge gives the version, such as the allroad quattro 2.5 TDI, that helps as well.
Fuel drain on your Audi allroad after it was driven
Next to a drain on the forecourt, a fuel drain on your Audi allroad goes a step further after driving. Once the tank has been emptied, the lines are opened and flushed through along with your filter, which leaves no petrol anywhere from your tank to the engine. With clean diesel in and the fuel system primed, we start the motor and check it runs properly.
After it has run: AdBlue in a diesel Audi allroad
Travelling with AdBlue in a diesel Audi allroad usually brings warning lights, smoke and rough running, and the car might go on to stall. The fuel pump draws fuel from the bottom of the fuel tank, which is where AdBlue settles, and so it gets to the fuel line quickly. It also does not burn or lubricate. Urea crystals build up in your fuel lines and the fuel filter once its water evaporates.
How AdBlue removal from a diesel Audi allroad is done
The lines and your filter have to be cleared of the crystals after your fuel tank is emptied, which is what AdBlue removal from a diesel Audi allroad that has been run means. Where your fuel filter needs it, we replace it.
Just the diesel tank is dealt with here. If your allroad has an AdBlue tank of its own, it is left as it is, and nothing here involves removing or turning off the AdBlue system.
Audi allroad fuel tank capacity and engine sizes
Every version of the Audi allroad in our records comes with a diesel fuel tank of 70 litres.
On this diesel allroad, the versions carry TDI badging.
On every version in our list, your engine is 2.5 litres.
The list includes Quattro versions.
Pricing a fuel drain on the Audi allroad after driving
The price of a fuel drain on the Audi allroad after it has been driven hinges mainly on how far it went and where it has ended up, and whether it was petrol or AdBlue makes a difference too. Those details are what we need when you call, and with them we can explain what the work will need.
Common questions about petrol in a diesel Audi allroad after driving
Is the allroad ruined now?
It is very unlikely. Permanent damage is rare when the vehicle is stopped early and the system is drained and flushed, and that is what we do wherever you've stopped.
Is it all right to drive it home first?
We'd prefer you not to. Contaminated fuel gets further into your system with every mile, so leave the allroad where it is while we drain it there, with no reason to shift the vehicle.
What do I do if it has stalled and won't restart?
Please do not try again. Leave it as it is, since every try draws more of the mixture through. Once we've emptied and rinsed it and put fresh diesel in, we prime your system and get it started for you.
Wrong fuel in my Audi allroad: does insurance cover it?
We come out whichever way your policy goes, and some do offer misfuelling cover, so checking yours once the car is sorted out is worthwhile.