E350 CDI OM642. Lack of power and P0299 fault code.

[W1ghty]

I have a back up Merc and pick up truck... so I should be OK....

Any luck with it all yet buddy ?

 

[ALFAitalia]

No time until tomorrow.....unfortunately I still have to work for another couple of years!! Will keep you all informed how it goes.....!

 

[ALFAitalia]

Ok.... so I cleaned the EGR, the egp sensor.... no difference. However I could not confirm which fuse protects then... number 44 is one of the ones in the boot.... so it won't be that one. Will Google later. Fuse plan is missing from my car! Anyway... no difference. I removed the batwing... no issues except there is a small bit of the orange seal missing so will order another... but I don't think it was affecting the seal integrity and it's the wrong side of the turbo to affect boost levels. I did notice a bit more side to side play in the turbo blades than I would like... but they are not touching the sides so I'd say it's one for the future as it does not look like a fun job.
So...still no boost
But I did notice that even in neutral it won't rev over 3000 rpm.... so I guess that means its in limp mode. But was the limp mode caused by the lack of boost or the other way round?
Still the only code is P0299.... but its stays on limp... with no eml, even when I reset the code. Very strange.. and annoying!
I drives fine with no warming lights.... just a bit slow!
Any ideas?
Couple of questions.
Which fuse number protects the egp, egr etc?
Can you replace the turbo cartridge with the turbo in situ...I have on other cars.
Thanks in advance for any further info.

 

[DSM10000]

Ok.... so I cleaned the EGR, the egp sensor.... no difference. However I could not confirm which fuse protects then... number 44 is one of the ones in the boot.... so it won't be that one. Will Google later. Fuse plan is missing from my car! Anyway... no difference. I removed the batwing... no issues except there is a small bit of the orange seal missing so will order another... but I don't think it was affecting the seal integrity and it's the wrong side of the turbo to affect boost levels. I did notice a bit more side to side play in the turbo blades than I would like... but they are not touching the sides so I'd say it's one for the future as it does not look like a fun job.
So...still no boost
But I did notice that even in neutral it won't rev over 3000 rpm.... so I guess that means its in limp mode. But was the limp mode caused by the lack of boost or the other way round?
Still the only code is P0299.... but its stays on limp... with no eml, even when I reset the code. Very strange.. and annoying!
I drives fine with no warming lights.... just a bit slow!
Any ideas?
Couple of questions.
Which fuse number protects the egp, egr etc?
Can you replace the turbo cartridge with the turbo in situ...I have on other cars.
Thanks in advance for any further info.

Hi.

I take it that the intercooler hoses are in good order with no splits?

I had this as well at one point but it only showed up when closely inspected.

The 3000rpm limit in neutral is programmed in as a safety feature to prevent damage with no load on the engine.

 

[W1ghty]

On the W211 the fuse is a 15amp one , in the engine bay fuse box up near the brake fluid reservoir.
I think it’s near the back right of the fuse box if you stand at the front of the car .
Obviously the W212 may differ , but I would guess it’s still in the engine bay and still 15amp ?
It’s a bit worrying that the turbo may have “lunched” some of the orange seal .

 

[ALFAitalia]

Hi.

I take it that the intercooler hoses are in good order with no splits?

I had this as well at one point but it only showed up when closely inspected.

The 3000rpm limit in neutral is programmed in as a safety feature to prevent damage with no load on the engine.

I will check more thoroughly when I have more time.....this happen on my ALFA and it took a few attempts to find it. In the end I only found it by getting someone to rev the car while I looked.

 

[ALFAitalia]

On the W211 the fuse is a 15amp one , in the engine bay fuse box up near the brake fluid reservoir.
I think it’s near the back right of the fuse box if you stand at the front of the car .
Obviously the W212 may differ , but I would guess it’s still in the engine bay and still 15amp ?
It’s a bit worrying that the turbo may have “lunched” some of the orange seal .

Its only a tiny bit missing ........and from where it was missing from I cant see how it could have got into the turbo.

 

[MrGreedy]

I took my turbo actuator off for a clean today. It was about half an hour. I had to remove the batwing as well to get proper access.
Warning: when I recoved the retaining circlip that holds the actuator arm on the ball joint, it flew off at a million miles an hour and dropped down into the engine bay. Which means it will never be found again. Thankfully, I'd read an earlier post by W1ghty, and I'd tied some (white) cotton to it, so it was easy to see where the clip and cotton tail had gone and retrieve. Cheers W1ghty! saved me a major headache there!

 

[mersum1es]

When the fault code triggers? Before engine start, on idle, on revving or after some driving? Have you checked all pressure sensors are giving ATM pressure reading when engine not running?

 

[ALFAitalia]

There is no boost anytime....but the code triggers after a little driving. Which sensors in particular. My two scanners don't see anything....but I have not had time to delve too deep yet.

 

[W1ghty]

I took my turbo actuator off for a clean today. It was about half an hour. I had to remove the batwing as well to get proper access.
Warning: when I recoved the retaining circlip that holds the actuator arm on the ball joint, it flew off at a million miles an hour and dropped down into the engine bay. Which means it will never be found again. Thankfully, I'd read an earlier post by W1ghty, and I'd tied some (white) cotton to it, so it was easy to see where the clip and cotton tail had gone and retrieve. Cheers W1ghty! saved me a major headache there!

Good job buddy , the Gods of chaos have to get up early to catch you out .

 

[ALFAitalia]

Well today I confirmed the problem when the turbo let go in style and blinded everyone behind with clouds of blue smoke! Well im 99 percent sure that's whats happened. Had to limp her home. Never mind... just bad luck. I will need to replace it....maybe just the core... which I think can be replaced without removing the turbo. Just need to check that out and find a good source for the core. Should have kept the Alfa!
Any info gracefully received. Inc part numbers.

 

[SpikyMikey]

Well today I confirmed the problem when the turbo let go in style and blinded everyone behind with clouds of blue smoke! Well im 99 percent sure that's whats happened. Had to limp her home. Never mind... just bad luck. I will need to replace it....maybe just the core... which I think can be replaced without removing the turbo. Just need to check that out and find a good source for the core. Should have kept the Alfa!
Any info gracefully received. Inc part numbers.

Büggér!!
The only small consolation is that your earlier observation of a bit too much side play in the snail was 'bang' on

 

[W1ghty]

Well today I confirmed the problem when the turbo let go in style and blinded everyone behind with clouds of blue smoke! Well im 99 percent sure that's whats happened. Had to limp her home. Never mind... just bad luck. I will need to replace it....maybe just the core... which I think can be replaced without removing the turbo. Just need to check that out and find a good source for the core. Should have kept the Alfa!
Any info gracefully received. Inc part numbers.

Jesus buddy !
Better ignore any of my previous fault finding tips ! Looks like you found it

 

[ALFAitalia]

Can anyone confirm it's possible to replace the core in situ?.... certainly looks like it should be possible....maybe I will start another thread on the turbo repair/replacement.