P

P Carr

New Member

• Oct 8, 2008

• #1

I have a 2003 TD6. I beleive this is the same engine as an 3.0D X5. I see lots of people with BMW's cleaning both these items and seeing better performance and mpg. How do you check and clean them?

 

lanmjdun

Active Member

• Oct 9, 2008

• #2

The EGR is a simple device and is simple enough to clean, just take it off an remove all oily sludge using petrol, then dry thoroughly and re-fit.

The MAF I would leave alone, it shouldn't get dirty as its upstream of the turbo, and if cleaning buggered it up in any way then it would be an expensive afternoon's work...

 

P

P Carr

New Member

• Oct 9, 2008

• #3

Cheers for the advise. How do i remove / clean EGR. Do I need to purchase any new parts for refitting??

 

lanmjdun

Active Member

• Oct 10, 2008

• #4

Off the top of my head, no, the EGR has an o-ring where it mates to the manifold.

I can't advise you on removal, other than to consult the workshop manual in RAVE, but if its similar to the BMW 2.5 it will be simple enough.

You may need a new set of clothes after an hour with an oily EGR valve and a litre of petrol though...

 

P

P Carr

New Member

• Oct 12, 2008

• #5

Cheers all done. Was not that dirty really. I was expecting it to be thick in crud. There is also a bit of oily sludge where EGR fits. What happens when this is sucked into engine as it builds up?