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  #1  
Old 01-26-2010, 07:47 PM
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E320 Auto to manual conversion

Hello,
I got 94' e320 that I want to convert it to manual. I hate it for been auto but I love it for everything. There are bunch of 5 speed w201s but I rather keep my E320 and convert it to 5 speed so I have couple of questions.

I can find clean complete w201 2.6 with 5 speed that I could use as donor car but will everything fit from w201? Ive researched that pedal assembly, flywheel, clutch will definitely work but what about driveshaft? Shifter? I assume I can also reuse slave cylinder and line? I really dont care about shifter console as I can modify it with some nice custom shifter boot and panel. What can I do about crank sensor?

I really dont care about the diff if its going to be little too tall as I want to turbo it soon too.


Thanks for any help and replies!

I will also document my swap so fellow MB enthousiast can use the info too.



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  #2  
Old 01-26-2010, 08:14 PM
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Quote:
Originally Posted by Kavkazia View Post
Hello,
I got 94' e320 that I want to convert it to manual. I hate it for been auto but I love it for everything. There are bunch of 5 speed w201s but I rather keep my E320 and convert it to 5 speed so I have couple of questions.

I can find clean complete w201 2.6 with 5 speed that I could use as donor car but will everything fit from w201? Ive researched that pedal assembly, flywheel, clutch will definitely work but what about driveshaft? Shifter? I assume I can also reuse slave cylinder and line? I really dont care about shifter console as I can modify it with some nice custom shifter boot and panel. What can I do about crank sensor?

I really dont care about the diff if its going to be little too tall as I want to turbo it soon too.


Thanks for any help and replies!

I will also document my swap so fellow MB enthousiast can use the info too.

Everything you're talking about doing *should* just bolt right on up, so they say. I can't comment on the driveshaft being the right length necessarily, but it's supposed to fit. Shifter bolts in the same way the old one comes out. Crank sensor, as the long as the flywheel timing pegs are the same it should be fine. Someone else might know more on that, I don't know if the newer model did something different.

The one thing that didn't work, for me, was the 16V tans. mount didn't line up with the 124 chassis trans. mount bolt hole holes on the frame rails so I had one made that will outlast the car for $150. May or may not be an issue in your case.

If, as you say, you have the complete car, it's just a matter of doing it. Don't forget the rear crank seal while you're in there.
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  #3  
Old 01-27-2010, 05:04 AM
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hmmmmmm
im not so sure on the crank sensor, the flywheel may have a different magnet/pickup/segment arangement from what your car is designed to run, so you should do a little more research first, can you get a manual trans kit for a w202,

and you may have to change the diff dependant on what sort of auto box you have as it may be impracticaly high geared? is ur auto 4 speed or 5 speed?

you can get the driveshaft lengthed or shortened if it doesnt fit, but hopefully it should, you will need the one from the donor car, hopefully it has the same flange as the diff, if not you will need to change the diff flange to suit, check this earlier to save a last minute about to bolt it up "damn"

you should be able to use the slave cylinder if its in ok condition, and for the clutch master cylinder it just joins into the brake reseviour

these turbo manual 3.2's are starting to become oh so common ;-)
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  #4  
Old 01-27-2010, 09:41 AM
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You might want to read up on which trans you want, the Getrag 16v may be one of the few options for a manual, as M104 Turbo's tend to eat transmissions.
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  #5  
Old 01-27-2010, 05:17 PM
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Thanks for your replies.

Well its easier to find 2.6l 190e then 300E manuals around here with not too many miles. I got 4 speed auto with 3.07 rear I believe which should be perfect for 5 speed it'll give me long gears which will suit my turbo setup well. It'll put more stress on clutch and drivetrain but it'll keep turbo in boost longer plus better MPG, .

I can get driveshaft shortened if something, Ive done it before on my 95' M3 when I converted it to S54 with 6 speed.

I guess nobody really has converted US E320 to 5 speed or 6 speed that can tell me exactly what parts will be needed for conversion that will for sure fit and work. I just dont have too much time and place to sit on the car while its apart for trials and errors, when I put her on jacks I want to have all the parts to swap it with, .
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  #6  
Old 01-27-2010, 07:09 PM
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Ok before you go crazy a few things to consider.

1. How much power do you finally plan on making?

2. IIRC the 190e 2.6 trans is good to about 400hp in a lighter 190e. Heavier cars put more stress on the drive train and yours even more so with a tall rear end.

Conversions like this aren't very common in the states, so most likely you'll have to do a little searcing and mix-and-match yourself, but that's half the fun of it.

For what it's worth, I plan on putting a turbo M104 in my 240Z. The car is 5-600lbs less than the 2.6 190e and I'm still worried about the 16v Getrag I'm probably going to throw in it, which should be good to about 500 hp in a 190e.
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  #7  
Old 01-27-2010, 07:55 PM
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http://cgi.ebay.com/ebaymotors/Flywheel-Flex-Plate-Mercedes-1994-1995-E320-3-2L-124-Ch_W0QQitemZ280049064377QQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item41343999b9

Looks to be the same, to me, as the older style. I didn't get out the magnifying glass though.

To preserve parts, might also go ahead and opt for the newer dual-mass flywheel, from maybe a C/SlK230. Allegedly don't hold as much power as single mass, but most 500hp Audi AWD S4s I know run the stock flywheel and hit 12.00-11.90s... Just a thought.
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Old 01-27-2010, 08:31 PM
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Thumbs up

The ebay item is the flexplate used for auto transmissions (the torque converter bolts to this). You need a flywheel for manual trans that has the friction surface that the clutch disk rides on. If interested (shameless plug), I have a complete factory 5 spd set up out of a W201 (86 190D) for sale. You would need to do homework as to what would fit and what else you would need for your W124 chassis: driveshaft (maybe), crossmember (maybe), and an early 6 cyl single mass flywheel with correct trigger magnets (for sure). The listing is buried down in the parts forum.

Keep us updated, I plan the same on a low mileage E320 when it comes home again (mom is using it).
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  #9  
Old 01-28-2010, 01:43 AM
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The manual flywheel for the 190E 2.6 will work. Both the manual M103 and m103-24v cars use a flywheel with 3 magnets 120 degrees apart, just like your auto.
m104 flex plate.

You can't use a 230 flywheel since they have a 60-2 trigger wheel setup and your motor has a 3 magnet setup.
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  #10  
Old 01-28-2010, 04:36 AM
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mag58 how do you know turbo m104's eat manual transmissions?
were did you get this info from?
just out of personal interest
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  #11  
Old 01-28-2010, 05:14 AM
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i would guess its because
merc manuals were never made for high torque applications, let alone ones that make as much as a six cyl turbo engine can on the mid range.
I say its only logical that they short live on the M104 turbo.
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  #12  
Old 01-28-2010, 09:17 AM
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I know the 6 speed wont hold since it's used in various chrysler applications as well, and they break them any time they attempt to throw something resembling a performance engine in front of it.

The Getrag 5 speed is, as far as I know, the strongest manual box that MB used in a M10x series bellhousing configuration. Pumpish I believe has toasted more than one in his 650+hp M103.

Turbos are hard on trannies
Heavy cars are hard on trannies
Tall rear ends are hard on trannies.
How long do you expect one to last?
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  #13  
Old 01-28-2010, 01:05 PM
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Glad to here somebody using getrag in M103. Got anymore info? I wonder which getrag 5 speed I can use , as I can find good getrag 5 speed for dirt cheap out of bmws, I assume its probably one from 3 series?

So here is list of parts that I should start looking for then,
Pedals from 190E
New pressure line from Slave to master cylinder with new slave and master ofcourse while Im there.
Flywheel out of 190E 2.6l

Getting close, just got to find out more info about which gearbox to use and figure out what driveshaft afterwards would work, , I'm not worried about shifter linkage as bmw one would be very close and I can just modify if something.

You also have to remember that its rear wheel drive car so it doesnt get as much stress on it verses fwd, and Im not looking to push anything over 450hp for daily driver and I think I might be okay with 2.6l manual too. Ive seen euro E classes with tons of abuse hit over 300K with stock gearboxes so it cant be that weak.

PS. Turbo E320, I'll be emailing you for sure in next couple of month for turbo manifold! .
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  #14  
Old 01-28-2010, 01:15 PM
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Nope. Getrag Dog-leg 5 speed out of a Mercedes 2.3-16V.

...They're not dirt cheap.

And 450hp is quite a bunch for a daily. Stock motor?
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  #15  
Old 01-28-2010, 01:19 PM
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5 speed out of 16V, I see.

Yes, stock bottom end with copper headgasket, apr headstuds and ofcourse properly tuned.

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