95 NA OM606 into 98 E300 ? - PeachParts Mercedes-Benz Forum

Billybob535 · #1 02-17-2018, 09:37 PM

I have a chance to buy a 95 E 300 with a good running NA OM606. It got rear ended and the car is not repairable. I am working on buying a 98 E300 with a turbo OM606 as an engine donor for a Jeep project.

Could I take the electronic controlled IP off the turbo 606, install it on the NA 606 and install the NA 606 into the 98 E300 so I would have a drivable vehicle?

That would give me a turbo om 606 for my project and a spare car to drive.

sixto · #2 02-17-2018, 10:56 PM

You might have a perpetual CEL and possibly perpetual limp mode with sensors and devices the ECU can’t find.

Sixto
98 E320s sedan and wagon

Billybob535 · #3 02-17-2018, 11:03 PM

I don't have any direct knowledge of the OM606 but is there a reason why I could not swap all the sensors and accessories from the 98 motor to the 95 motor? Are there sensors in the intake and exhaust manifolds that will not swap?

torsionbar · #4 02-18-2018, 12:25 AM

The 98 ECU expects positive manifold pressure. You may be able to replace it with a 96-97 w210 E300 ECU and make it work. I would not even attempt this without a DAS/Xentry computer.

sixto · #5 02-18-2018, 02:22 AM

‘95 has variable length manifold runners that the ‘98 ECU probably won’t control. I suppose you can leave them in one position or another but I hear it changes the character of the engine. You might be able to rig an rpm trigger.

Sixto
98 E320s sedan and wagon

jay_bob · #6 02-18-2018, 07:48 AM

First to make things easier to follow you have two OM606 engines, a .910 in your 95 and a .962 in your 98. The 1996-1997 W210s had a .912 engine, very similar to the .910 structurally except for the fact that .910 has a mechanical IP and the .912 electronic IP.

So in summary
OM606.910 = 1995 E300, W124, mechanical pump, N/A
OM606.912 = 96, 97 E300, W210, electronic pump, N/A
OM606.962 = 98, 99 E300, W210, electronic pump, turbo

The .910 control system in the W124 is a mechanical linkage from pedal to pump. There is an ECU but it just operates the resonance flaps, EGR, and overboost protection. There is an actuator and rack sensor on the IP, but it is just for idle control, as in the OM603.

The .912 and .962 control system in the W210 is fully electronic. The pedal rotates a potentiometer in the engine compartment which feeds an input to the ECU. The ECU does the calculations and then operates the rack actuator accordingly. The ECU also controls the remaining functions on the engine.

.912 has variable length intake runners controlled by the resonance flaps
.962 does not have these flaps but has a turbo and a wastegate.
Both have EGR.

I really don’t see how an ECU swap is not possible from one W210 to another. Only way you could do an ECU swap is to take the ECU, TCU, key switch, and instrument cluster from a 96-97 and put it in the 98. These modules all get married to each other at the factory with the VIN and it’s not possible to change this even with Xentry. But even that I am concerned with everything being plug and play due to the fact that we don’t know what else got changed between 97 and 98. I know they completely redesigned the key switch 97 to 98 and they added much more body CAN bus function in 98 that is not in 96 and 97 210s. All that runs through the key switch.

Welcome to modern automotive computer control. The days of swapping components from one car to another is long gone. It’s not just us, the farming community is having the same issues with modern tractors.

Ok back to your original question. I’m not following your original post. Is there something wrong with the 98 E300’s engine that it is not driveable now?

Billybob535 · #7 02-18-2018, 07:58 AM

Nothing wrong with the turbo 606 in the 98 w210. I just want it to use it in a different (non m-b) vehicle I am building. The W210 donor is a nice car and when I stumbled on the 95 w124 with the good NA 606 20 minutes away for $400, I wondered if it could be used to keep the w210 from being junked. I was not going to use the electronic IP on the 98 606 so I figured swapping it onto the 95 606 might make it work in the w210 without major changes.

It sounds like the 95 na 606 isn't going to work in the w210 without swapping a bunch of parts I don't have so I will pass on it.

Thanks

Billybob535 · #8 02-18-2018, 08:12 AM

One more question. I intended to install an all mechanical om603 IP on the 98 606 for use in my other vehicle. I understand that the 95 NA 606 IP is all mechanical with 6mm elements but no ALDA. Would I be better off with the 95 606 pump over a 603 pump? I understand that an external ALDA can be added to the 95 pump.

tdoublenastywitit · #9 02-18-2018, 09:48 AM

Please just consider the time and stress undertaking 2 engine swaps at the same time is going cause u...

And from my experience, you are going to be pissed that u bought a non turbo engine in the future

Billybob535 · #10 02-18-2018, 10:26 AM

No worries about stress. Its not for a daily driver and I'm in no hurry. If I buy the 95 it will sit until I feel like pulling it all apart. I just want to make sure its worth something either in donor parts or sellable parts.

Is there a big demand for 95 E300D (w124) parts? It a one owner car purchased in Germany then brought to US.

sixto · #11 02-18-2018, 10:32 AM

I don’t know where the ‘95 IP fits into this but the 603 IP has 5.5mm elements and the 606 turbo has 6mm elements. You’ll potentially starve the 606’turbo with a 603 IP but you might gain some back with a full load stop adjustment. Look into fitting the 606 elements to the 603 pump. Look for a friendly Bosch shop or talk to Goran. This isn’t something you do at home.

I don’t know about “an ALDA can be added’’. An ALDA is a fuel restricting device needed beause the IP naturally delivers more fuel than the engine can efficiently burn before the turbo kicks in. I’m pretty sure the ‘95 IP isn’t a closet turbo IP with permanent supression.

x2 - it sounds like a lot of work for something you might not be happy with.

Sixto
98 E320s sedan and wagon

sixto · #12 02-18-2018, 10:39 AM

A ‘95 E300 monovalve that isn’t leaking should be worth something. Minus the engine it’s a ‘95 E320 with a 722.4 transmission and fancy right front fender. It could be worth the acquisition cost in the long run but I wouldn’t plan retirement around it.

Sixto
98 E320s sedan and wagon

torsionbar · #13 02-18-2018, 12:36 PM

Two engine swaps sounds like the slow scenic route. If the goal is a driveable '98 E300, I would simply drive it. When cared for, these cars are fantastic to drive and very comfortable. There are plenty of used om606 turbo engines for sale, and they aren't expensive (well under $2k complete) so you'd be better off buying a used engine for your jeep project and leaving the '98 w210 unmolested.

jay_bob · #14 02-18-2018, 01:56 PM

Particularly if your W210 is rust free and has been maintained. These are great drivers, from first hand experience. I got my W210 in March 2013 with 196k, I now have 248k, still doing great. Biggest issues I’ve had with it have been the front wheel bearings and I did replace the air conditioning system (evaporator leak which is a problem on both 124 and 210 chassis).

Better to find a wrecked/rusted 210 for an engine donor (prevalent in the Northeast), and keep this one intact and drive it.

ROLLGUY · #15 02-18-2018, 05:18 PM

Quote:

Originally Posted by torsionbar

Two engine swaps sounds like the slow scenic route. If the goal is a driveable '98 E300, I would simply drive it. When cared for, these cars are fantastic to drive and very comfortable. There are plenty of used om606 turbo engines for sale, and they aren't expensive (well under $2k complete) so you'd be better off buying a used engine for your jeep project and leaving the '98 w210 unmolested.

Agreed, keep the '98 intact. I had a '99 and thoroughly enjoyed it. A friend has a '98 and loves it as well. Even though I am a little spoiled with the W211 Diesels, the W210 is still one of my all time favorite cars. A major jump from a W123, but not far behind a W211. The OM606 is probably the best mechanically injected Diesel on the planet (as you know from your desire to use it as a donor) in my opinion. If it was me, I would still buy the W124 for parts or a later project. As stated, the right front fender is unique and worth as much as $100 (around here anyway), and should not be allowed to go to the crusher.

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