My 1999 May end up needing the turbo rebuilt or replaced, turbo is not kicking in at all and the wastegate shaft seems to be very loose

Hoping it may just need a spring or something for the wastegate but I would like to get some prices and recommendations for good turbo rebuilders or remans for this car just in case

I dont even know what brand turbo it is and Google searches are turning up almost nothing on turbo replacement for om606

__________________
Courtney
2006 E320 CDI
2008 ML320 CDI

On this car, vacuum keeps the wastegate closed and a spring opens it up. As a test, you can hook a line with constant vacuum up to the wastegate and the turbo should develop full boost. If the diaphragm in the wastegate is ruptured, it won't hold and there will be no boost.

The stock turbo is a triple K. Look for a triangle logo with 3 "K"s in it.

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

Awesome info ,thanks

These are the things we tried I think

First we unhooked vacuum hose from wastegate "actuator" or valve, no change

Then tried pulling that loose shaft/rod that controls wastegate both directions - so closed and open.....and clapping it off so it could not move with pliers, still not change

They are sure it is something in the turbo/wastegate because that rod is moving way too freely
Hopefully it just needs a spring

Will do some searches for the triple k turbos, thank you

__________________
Courtney
2006 E320 CDI
2008 ML320 CDI

Is this diaphragm for the wastegate replacable?
Or should we just try to rebuild the whole thing or replace it?

__________________
Courtney
2006 E320 CDI
2008 ML320 CDI

If you unhook the vacuum line, you will guarantee that you will have no boost. Vacuum is what keeps the valve closed (full boost). The spring failing would not be an issue since back pressure tends to blow the valve open anyway.

Take the vacuum line going INTO the transducer off and hook it directly to the wastegate actuator. If you do this while the car is running, you should see the actuator rod pull in when the vacuum is connected.

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

Unhook the wastegate actuator again, and draw on the hose with a mity vac. It should hold vacuum. When you release, you will probably hear the wastegate pop open.

I used Cheetah Turbos to rebuild the turbo on my 190DT (same turbo as yours). Another good mail order shop is G-Pop. You may want to ask around at local service shops...not necessarily Mercedes, as Garrett turbos are generic...and see if there's a local specialist.

Rebuilt Diesel, Gas & Marine Turbochargers - Welcome to Cheetah Turbo

G-Pop Shop

(we'll see if the links survive the robo editor)

great info guys, thanks

think i found a good turbo rebuilder in phoenix, will take it up there wed if all these suggestions you guys made do not help us make a determination on what is wrong

someone said they thought the turbo was triplek and someone else said garrett, does anyone know for sure which turbo the 99 came with? or were both types put in these cars

__________________
Courtney
2006 E320 CDI
2008 ML320 CDI

My car has a KKK. Sometimes they are referred to as Borg Warner or Schwitzer in ebay sales.

Here's an example. The listing says Borg Warner but you can clearly see the triple K logo on the side of the turbo compressor.

http://www.ebay.com/itm/Mercedes-Benz-E300-New-Genuine-OEM-Borg-Warner-Turbo-Turbocharger-1998-1999-/181297370716?pt=Motors_Car_Truck_Parts_Accessories&hash=item2a362a565c&vxp=mtr

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

My 98 has the triple-K turbo.

__________________
The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)

both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech

just wanted to give an update on what was wrong with the car

turbo was fine- i do have a triple k turbo on this 99


turned out that the hose going to the map was barely slipped off, i did not get to see where this map sensor is but plan to take it in for an oil change in a week or two and get educated on where this is in case another issue in the future

i did find a turbo rebuilder in phoenix with a good reputation, joel at az turbo and tractor

thanks for all the help

__________________
Courtney
2006 E320 CDI
2008 ML320 CDI

Gotta love those easy fixes. The MAP sensor is located on the secondary fire wall on the intake side of the engine. It has a single electrical connection and a single vacuum hose coming out the bottom and running about 12 inches or so over to the "EGR mixing chamber".

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250