Question about 2004 BMW 5 Series

1 Answer

X5 diesal blue smoke


I have an X5 3litre diesal 2002.

A few weeks ago it started off with a slight miss and I was topping up the oil now and again. I then started to get blue smoke mainly at idle and low revs.
I took it into my garage and they said an injector was leaking into the chamber, so they changed it along with the turbo as the seal had gone.

Now it runs and drives perfect but still fills the road up with blue smoke and the oil still needs topping up.

Is it worth dong a compresion test on it, or could it be something else.

Pleas help!

J the boy

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.

    Vice President:

    An expert whose answer gotĀ voted for 100 times.


    An expert who has posted more than 50 answers, of which 90% or more were rated as helpful.

  • Expert
  • 113 Answers

Hi , if you have had a turbo failure on this vehicle , just replacing the turbo will not cure the cause of blue smoke . depending how bad the seals had gone in the turbo you would need to replace , the complete exhaust system , the crankcase breater , air intake manifold , air charger but only if these items have been contaminated with oil , they would not be able to be cleaned out , hope this helps , regards mark

Posted on Aug 12, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

My 2009 Hyundai getz blows cloud of blue smoke when starting but only after car has been facing down a slight hill,no water in oil or exhaust can't see any oil leaks and now starting to miss a little

Maybe valve stem oil seals are getting worn allowing oil to enter the bore over a period of time , hence blue smoke on start up and miss fire on start up

Feb 14, 2016 | Hyundai Cars & Trucks

3 Answers

Slight oil drop on ground every day. nickel size. Just had the oil changed a week ago. mine is a 2002 highlander

Make sure the drain bolt is tight and filter is tight first then look for your self and see If the value cover has oil around it if so it is the covers if not it could be your seals

Dec 21, 2012 | 2002 Toyota Highlander

1 Answer

My Ford Focus 2l tdci is smoking heavily by times. The car is for the past week in the workshop and no smoking occurred.How come blue smoke is pouring out of the exhaust only sometimes - then it is g

Hi Gert, If the smoke is more visible during the period after start up in the mornings, I would suspect the valve stem oil seals have become hardened and defective. The oil seeps in slowly passing the seals from the cylinder head. Sounds as though you need a head job. Regards John

Apr 29, 2012 | 2005 Ford Focus 2.0

1 Answer

My crystler concord just got an oil change 2 to 3 weeks ago and i changed the oil filter, but the oil level is already low, what does that mean?

Does the car emit blue smoke from the exhaust when driving? If so, either the piston rings or valve seals could be bad (expensive repair). The PCV valve could also be bad. The last reason (but no blue smoke) might be a physical oil leak due to a loose oil filter, drain plug, leaking oil pressure sensor, or worn crankshaft seal. Good luck!

Feb 04, 2010 | 2002 Chrysler Concorde

1 Answer

02 sentra just replaces my engine with a used one and install 3 weeks ago it eat a lot of oil 1 can a week and my exhaust fume color blue.

ur burning oil smoke from tailpipe --white /burning coolant possible blown head gasket---black /build up of carbon need tune up andadjustments---blue /engine problems-bad rings /piston-valves adjustment ,burnt,bent,buildup etc pull ur plugs out one at a time look at whick plug is oil soaked this will tell u whick cylinder(s)are bad

Oct 29, 2009 | 2002 Nissan Sentra

1 Answer

Bmw x5 blue smoking coming out engine


Jul 21, 2009 | 2004 BMW 5 Series

2 Answers


The garage will say that they only re-built the head and will only warranty that part.
However they have a duty of care to check that their work covers all aspects of the work quoted for.

Problem is that when a cam belt snaps it can drive two parts of the engine together (Valve and Piston Crown) which sometimes you get away with having a new Valve fitted and other times it puts a hole or a crack in the top of the piston.

This could explain your blue smoke as oil is being burnt off down the exhaust as oil is being drawn into the cylinder.

If the oil level gets too low pressure drops and you can get bearing failures which can lead to con rods snapping.

It is not normal for blue smoke to be emitted after a cylinder head rebuild !!

If blue smoke comes out of the exhaust there is oil being burnt off because of a mechanical problem.

If it is a professional garage they may come to an agreement with you , if it is a hole in the wall then your chances of redress are slim

Jul 08, 2009 | 2007 Ford F

1 Answer

2002 VW Golf 1.9 turbo diesal won't start.

chances are your turbo pipe has come off near the back of your drivers side headlamp, where it gos into the inner wing to the intercooler. hope this helps

Jun 19, 2009 | 2002 Volkswagen Jetta TDI

1 Answer

2003 honda civic dx oil pressure light comes on and off

have u noticed any blue smoke on start up or while driving if so possibly piston rings

Feb 24, 2009 | 2003 Honda Civic

Not finding what you are looking for?
2004 BMW 5 Series Logo

446 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Frankie B

Level 2 Expert

65 Answers

Fred Sops

Level 2 Expert

272 Answers


Level 2 Expert

254 Answers

Are you a BMW Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides