Hi, a good friend and diesel benz fan here in town had this on an engine he just bought at the yard, and I think it's a trap oxidizer. If it is, shouldn't he put it back on and go to a dealer and have the system fixed under the recall?

Thanks!

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1980 300SD (daily driver), 1981 300D (Inca Red)

It could be. Is that on a 617? See the part number on it?

-Jason

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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.

Yes, that's a trap oxidizer (original, replaced free every 30,000 miles) or a trap catalyst (recall in the late 1980s, installed free, a permanent replacement) for the OM617 turbo engine in a 1985 300D-T or 300SD, California version. If you have the VIN from the car the engine came out of, any dealer can look it up and tell you whether the recall was performed. Almost all 617s were done, I've never even seen a "trap oxidizer."

Don't confuse this with the trap cat recall that was done on the 1987 300D Turbo, which has an OM603 engine. In that car the trap cat was removed and a straight pipe was installed, plus a catalyst in the exhaust system, after the turbocharger.

Jeremy

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"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970

Don't bother installing it on a car to try and get free parts. If the car you install it on has already had the trap-ox removed by the dealer, the VIN will show it in the system and they won't do it twice.

Jeremy, I'm pretty sure that the '86/'87 OM603 came with a trap-ox also, which was replaced by a trap-cat in the front pipe after the downpipe.

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Gone to the dark side

- Jeff

I thought it (the "football") was a trap cat but it could easily have been a trap oxidizer. I had the recall performed a couple of weeks after buying my '87 so I never saw much of it. Thanks for pointing out the possibility.

Jeremy

__________________

"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970

the engine is a 617 out of a 300D from 80 or 81, he says.

__________________
1980 300SD (daily driver), 1981 300D (Inca Red)

Must have been a replacement engine, then. Trap oxidizers first appeared (maybe) in 1984 models and (definitely) in 1985.

__________________

"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970

Ya. On the 617 the original DPF was replaced with a cat, but the position of the device stayed the same. On the 603 the DPF was also replaced with a cat, but the cat was put under the vehicle and the DPF replaced with a pipe.

-J

__________________
1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.

Your friend pulls an engine from the yard, (junk yard?) and is going to install it in another vehicle? then drive said vehicle to the dealer to see if they will replace it? NO way that is going to happen.

Or are you asking, that your friend put everything back on the engine, and take the engine to the dealer to have them replace it?

No way that is going to happen either.

The engine has to be in the vehicle it came it, and in this case a 85 Calif car, and everything is recorded by mercedes by the VIN#.
mercedes replaced these every 30,000 miles, part of the emission warranty. I had mine replace when we first got the car back in 97, was low on power, and had been on there 50,000 miles. think they replaced it with the new trap/Cat that never has to be replaced. so now that replacement is in MB`s records by Vin# of the car.

It`s now in a box out in the barn and should last a long time.

why in the world do you want to add all that junk back on?

To answer your question, yes, that is the Cat/trap.

Charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

...
80/81 300D engine would not be turbocharged... do not use it with your turbo.
if it's from a 300TD the 81 would be turbocharged, but it will have a pump boss on the head.

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

yeah, I agree...no reason to do so. I think we were thinking that the engine might never have been looked at by MB. But since it's not in the original car, there's no reason for him to even think about it.

Thanks for all the answers.

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1980 300SD (daily driver), 1981 300D (Inca Red)