My Focus has just gone past the 60k point and has developed a worrying problem which I believe is linked to the turbo.

If I pull away quite quickly and work my way up to third gear and do 40-45mhp (when I know the turbo will be working), the car is jerking very noticeably. It feels as though the power from the turbo is being turned on and off very sporadically.

If I was on the motorway and I was doing 70, and I put my foot down to overtake and build up to 75-80, the power keeps coming on and off it almost feels as though the car is being hit by a big gust of wind, as the power noticeably drops, then comes back, then goes again. I have noticed at lower speeds there is a whistle coming from the turbo area, I have checked pipes, can't see any air leaks.

Is there anything I could check, or does anyone have any ideas what the cause is?

A good friend of mine who works for Ford said my lynx engine is virtually bullet proof, so I am surprised at such a (relatively) low mileage, I am getting bother from it.

It could be an injector problem? there's been a few threads about this for the injectors ending with the batch number 3

It could be an injector problem? there's been a few threads about this for the injectors ending with the batch number 3

Thank for your post. How can I check which injectors batch I have?

Can't believe I am reading this but my Ford Platinum warranty runs out in about 125 miles. Does anyone think this would be covered by warranty?

Rang my local Ford dealer this morning, he thinks it is fuel filter, not covered under platinum warranty. He is going to phone me with prices.

What is a reasonable charge for a replacement fuel filter on a 1.8tdci?

the dealers will charge you over 100 for a filter replacement. the filter should cost around £20 for the genuine ford one and it can be done in less than half an hour so i would go to a cheaper garage to get it replaced or change it yourself.

make sure that you or the garage fills the filter housing to the brim with diesel and you shouldnt have any issues starting it up

the dealers will charge you over 100 for a filter replacement. the filter should cost around £20 for the genuine ford one and it can be done in less than half an hour so i would go to a cheaper garage to get it replaced or change it yourself.

make sure that you or the garage fills the filter housing to the brim with diesel and you shouldnt have any issues starting it up

I wonder if it would be cheaper to just go for a full service. My car will be due for one this coming summer. Maybe I should book it in early as I am certain the fuel filter will be changed on a full service.