My 119,000 mile '89 560SEL has suddenly developed a loud whine from the transmission. It still works, but I'm assuming not for long.

Does anyone have advice on rebuilding this transmission?

Tom Gentry
Life is too short to drive boring cars!

I have an 88 300 SEL and I asked the dealer for some techical info regarding the trans. I was told that the dealers do not repair these units, they replace them with factory rebuilt units. The shop manual only provides a limited amount of info on the trans. tyical of the 126 chassis. There are a number of shops on the internet that offer rebuilt units. If you purchase one from Mercedes you are looking at $2,000-$2,500 excluding installation.

Do you change the fluid and filter every 30K mi.? If I were you, I would drop the pan and see if anything has accumulated in the bottom. The fluid should be a bright red even after 30K mi.

No takers on this question?

Has anyone rebuilt their own transmission?

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Tom Gentry
'89 Mercedes-Benz 560 SEL
'96 SVT Mustang Cobra (Mystic #1345)
Life is too short to drive boring cars!

There is a very good and detailed thread here of the forum about rebuilding a transmission. I cannot remember the authors name - but it will eventually come to me

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BENZ THERE DONE THAThttp://www.peachparts.com/shopforum/...c/progress.gif
15 VW Passat TDI
00 E420
98 E300 DT
97 E420 Donor Car - NEED PARTS? PM ME!
97 S500
97 E300D
86 Holden Jackaroo Turbo D
86 300SDL
(o\|/o)

I don't know if this is the one you mean... but it's full of good resources.
The ultimate DIY - or am I crazy ?

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-Marty

1986 300E 220,000 miles+ transmission impossible
(Now waiting under a bridge in order to become one)

Reading your M103 duty cycle:
http://www.peachparts.com/shopforum/831799-post13.html
http://www.peachparts.com/shopforum/831807-post14.html

I haven't quite done it yet but I may well tackle rebuilding the "spare" 722.315 I have for my wife's 300D.

I "peered into the abyss" on the 722.120 that is going into the 300SD. I had the front half apart but didn't get into the gears/clutches/bands/ etc as it only had 125k mi on it (bad front pump). I think I can do a fairly complete rebuild on one. I rebuilt a Ford C-4 once

At the rate I work , it should take me a year or two. How much time do you have?

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80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??)

$1,500 for a rebuilt trans + maybe 2 hours labor to swap them out.

Don't forget a rebuilt torque converter and new trans mount, another $350 or so.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

Thankyou! That thread has just the information I need. However it looks like TransOnline is no longer accepting new members, and I'm not sure how to get the ASTG manual mentioned.

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Tom Gentry
'89 Mercedes-Benz 560 SEL
'96 SVT Mustang Cobra (Mystic #1345)
Life is too short to drive boring cars!

Is factory rebuilt considered reman. ? Do they go through all the hard parts and replace any that don't meet spec?

Yep that's the one! Wish I had the time and KSA's to tackle one

__________________
BENZ THERE DONE THAThttp://www.peachparts.com/shopforum/...c/progress.gif
15 VW Passat TDI
00 E420
98 E300 DT
97 E420 Donor Car - NEED PARTS? PM ME!
97 S500
97 E300D
86 Holden Jackaroo Turbo D
86 300SDL
(o\|/o)

Just do a search on the mercedes 722.315 transmission. I am sure it will come up on ebay or the 'net. The factory manual will probably be better. The 722.1xx ATSG manual is absolute garbage- the 722.3xx one looks better but I haven't actually tried to use it yet.

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80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??)