Filled his new diesel beamer up with petrol I take it this is bad news and will cost a fortune to put right..........Dear Oh Dear ...............Managed to drive about 2 miles then it stopped...........

How much to put right? :eek:

How much to put right? :eek:

6k has been mentioned but I reckon he's being ripped off.

6k has been mentioned but I reckon he's being ripped off.

Is it more complicated than doing that trick where you suck the end of a hose?

yep, they will have to flush out the entire diesel sytem, which will not be cheap, plus as he drove it then stopped, that means the engine is damaged, which if it is not repairable will cost a lot in a BMW, not including all the labour costs.

my missus did exactly the same with the fabia, ran it until it cut out, just drained it and put a new fuel filter on, worked like a dream.

I cant comment on the ability to do this with a bmw though but its worth a try before spending a stupid amount on it

Which filters will need replacing??

fuel filter

Mother in law done the same on her Passat Tdi. Required a flush and fuel filter replaced , cost around £120 if i remember.

but priceless for future jokes about her.

My mates missus did the same in a Jeep Cherokee. She drove it for a fair few miles and said it was running a bit rough.

My mate drained the tank, filled t with diesel but it wouldn't run so took it to a mechanic who replaced the fuel pump (uses diesel as ts lubricant) and it is now fine.

As for a Beemer diesel. Who knows but I bet it wont be cheap......

Newer cars don't rely on the derv as the lubricant as much, as they got rid of all the sulphur so it isn't as lubricating and so they have been designed to cope with this.

The injectors and pumps are the prime candidates for damage, but if you can avoid the main dealer then it won't appear on the car history and so invalidate the warrenty on those and other parts.

Personally get an independent garage to drain the tank change the fuel filter with another genuine one, and just pray it hasn't knackered it.

I had a Jetta FSi in today with £40 of diesel in it, how he actually managed to get it in the tank amazes me.

I had a Jetta FSi in today with

Yeah, isn't the diesel nozzle too big to fit into the filler on a petrol? :confused:

Steve

I was once determind to put diesel in this 307 when I worked at Peugeot.

Being a total newbie when it came to cars I decided it must be a diesel (as I had only ever seen diesel 307s) Also it was the first time I had ever driven an automatic, so that was strage too...

Took me ages to figure out it was a petrol.

I had a Jetta FSi in today with

It's ok to put petrol in a diesel usually from what I gather as the high octane rating will simply mean the fuel will not ignite and the car won't run. Normally, a drain, flush and fuel filter change sorts it.

The other way round on the other hand is bad. The really low octane rating of the diesel will pre-ignite like hell in a petrol on the compression stroke and you risk causing damage that way. Also, the injectors are designed to handle a less viscous fuel and so may end up a little gunked up. Nothing a good flush can't fix though providing the preiginition hasn't melted the plugs!

Edit: Having said that the compression ratio on a petrol is normally lower and so the fuel may not ignite at all making it run lumpy. Chances are all it needs is the fuel tank draining, filter changing and a good flush through with the correct fuel.

It's ok to put petrol in a diesel usually from what I gather as the high octane rating will simply mean the fuel will not ignite and the car won't run. Normally, a drain, flush and fuel filter change sorts it.

The other way round on the other hand is bad. The really low octane rating of the diesel will pre-ignite like hell in a petrol on the compression stroke and you risk causing damage that way. Also, the injectors are designed to handle a less viscous fuel and so may end up a little gunked up. Nothing a good flush can't fix though providing the preiginition hasn't melted the plugs!

Edit: Having said that the compression ratio on a petrol is normally lower and so the fuel may not ignite at all making it run lumpy. Chances are all it needs is the fuel tank draining, filter changing and a good flush through with the correct fuel.

even a little bit of diesel in the petrol will usually make it difficult to start when cold , as the plugs will get sooted up