Thread: RRS 3.0 blowing smoke (lots of it)

not sure if its relevant, but when my D3 starts to blow a bit of smoke under acceleation, I clean the MAP sensor and MAF with alcohol spray, and the smokey behaviour at full throttle dissapears almost totally. In addition your throttle response is alot better.

Perhaps with EGR system on turbo diesel cars, the intake system gets some nasty residue on it.

Ive also periodically cleaned my intake duct with the "subaru upper cylinder cleaner" spray bottle, which is same as the "seafoam" in the USA. this is also useful for removing/reducing the oily residue buildup in the intake pipe network (incl turbo and intercooler)

Originally Posted by gazm3

not sure if its relevant, but when my D3 starts to blow a bit of smoke under acceleation, I clean the MAP sensor and MAF with alcohol spray, and the smokey behaviour at full throttle dissapears almost totally. In addition your throttle response is alot better.

Perhaps with EGR system on turbo diesel cars, the intake system gets some nasty residue on it.

Ive also periodically cleaned my intake duct with the "subaru upper cylinder cleaner" spray bottle, which is same as the "seafoam" in the USA. this is also useful for removing/reducing the oily residue buildup in the intake pipe network (incl turbo and intercooler)

Mmmmm...wish I'd known that months ago. As I've explained elsewhere (must be in another thread I think) LR eventually gave up, washed their hands of the problem and simply shipped out a new engine from England. After another week at the dealer with the body off, the problem has completely disappeared - for now anyway. I now have a brand new engine in a 30,000km old car.

Originally Posted by GregMilner

Mmmmm...wish I'd known that months ago. As I've explained elsewhere (must be in another thread I think) LR eventually gave up, washed their hands of the problem and simply shipped out a new engine from England. After another week at the dealer with the body off, the problem has completely disappeared - for now anyway. I now have a brand new engine in a 30,000km old car.

I know it was painful for you mate....but I think I'd prefer your outcome...LOL

Mines currently in getting turbo no 2 replaced. I got a fair few trouble free months after the first turbo replacement and then noticed an oil leak....

Originally Posted by GregMilner

Mmmmm...wish I'd known that months ago. As I've explained elsewhere (must be in another thread I think) LR eventually gave up, washed their hands of the problem and simply shipped out a new engine from England. After another week at the dealer with the body off, the problem has completely disappeared - for now anyway. I now have a brand new engine in a 30,000km old car.

im not sure it helps in chronic cases.

I had to replace a turbo actuator in my disco3 some 12months back. Ouch $4000 thank you but the car has run seamless since and i reguarly clean the MAF and MAP senosors with isopropinol (alcholol) spray.


With the VVT turbos which kinda makes sence is the turbo is set in high rpm mode and actuates to low rpm. When the actuatior starts to wear of gum up the telltale sign is some chronic smoke at around 1700-2200 rpm along with a loss of power in this rev range. What happends is the turbo doesnt activate to the low rpm angle, therefore the ECU still thinks its working and dumps the fuel in that the engine cant use, hence the big plume of smoke. After about 2200rpm the smoke seems to go away as the turbo in high rpm mode starts to spool. If its a small plume it may just be false readings from the MAP or MAF (there is a big useful thread on MAP cleaning on here somewhere).

The only defence is to I guess use the upper cylinder lubricant I mentioned before to periodically clean the intake system. Personally Id use it every oil change, especially if you dont have an EGR delete kit.

I dont know how other models that use turbo diesel engines with VVT turbos, and EGR based systems. I suspect this is why lots of "top end" turbo diesels have big black smoke pouring out of them under acceleration.

I had loads of smoke under acceleration on my d3, it was just the turbo hose had split. Replaced and all is groovy again. For now !

Worth checking before spending wads..

I ahve already blanked the egr valves and clean the MAF sensor at every oil change.