How can I be sure that the turbo is broken on my 320d E46 -04?
There are oil in pipes.
Car runs like no turbo charging.
hen running at highway speed +90km/h and full throttle there is very little respons.
There are no error codes.
Air mass meeter is ok.
Don't want to buy new turbo charger and tear down the old one before I'm sure...
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if the tubo wont spool up its probably seized,
remove the intake tube, with engine off and see if it will spin, if it wont spin then probably seized. the oil line could be plugged, remove the oil line and squirt WD 40 then fresh motor oil in it and turn the turbine by hand back and forth until you free it up. a pipe cleaner in the tube will clean residue out.
if you get it to spin check the oil pressure to the turbo, should be above 30 psi.
keeping clean oil in the engine (regular oil changes) will keep this lubed. remember the turbo spins at speed of 10000 rpms, so clean oil is esential.
White smoke out the exhaust is a sign of either water in the fuel or coolant being burned with the fuel. Observe if you have any coolant consumption and if not, wait until your tank to empt and filled up with new fresh good quality gasoline and you will be allright. If you have a coolant consumption you will need a tool to pressure test the coolant system and find where is leaking. You can purchase it at Harborfreight tools. Could be head gasket, Throtllebody gasket, intake gasket and others... Good luck.
1 - Remove the turbocharger intake tube
2 - Disconnect the charge air cooler inlet pipe
3 - Remove the push pins on turbo cowl
4 - Disconnect the turbo VGT solenoid
5 - Remove the oil supply tube
6 - Using the special tool, remove the oil feed tube
7 - Remove clamp from the turbo down pipe
8 - Remove the clamp from the turbo inlet
9 - Loosen the exhaust inlet pipe-to-EGR cooler clamp
10 - Loosen the RH & LH exhaust inlet pipe-to-exhaust manifold nuts
11 - Remove the rear turbocharger mounting bolt
12 - Remove the front mounting bolts
13 - Position the turbocharger and remove the turbocharger drain tube
14 - Remove the turbocharger
If you cant do it with these instructions put down your wrench and take to a dealership for a professional to work on it
If you have no oil pressure on the dash gauge you need to drop the tin sump under the engine and check the two oil pick up pipes in there . They crack and fall off or the seal goes hard letting in air so no oil pumps. An known fault on the 3.0
The long one is for the engine oil lube ( turbo ) and the short one is for the injection system .
The high pressure pump is only for the injectors.
If you have good oil pressure on the dash gauge then I agree with Guru Ronaldbrains the turbos are poor but ! its 5/30 oil in 3.0 4JX1 engine or you will have starting troubles .
simple. the trubo bearing/seal (probably more the seal) is stating to go and that is leaking oil into the return pipe. take pipe off and have a look at the turbo and see if you can see any oil leaking from inside of it. also oil in the intercooler = bad clean out after fixing the turbo = use solvent or something to dissolve oil but make sure you let the intercooler dry out before re-installing it
it sounds like your turbo has packed in firstly the oil seal in your turbo has failed thats why ur seeing oil from exhaust & the whistling from turbo is the vanes in turbo breaking up so i would advise not to use car until new turbo is fitted & inter cooler pipes and inter cooler itself are checked & cleaned for swarf from turbo you can check turbo by disconnecting turbo pipe &inspecting turbo vanes (fins) to see if broken up or any damage to chamber.