CLK500 772.6 transmission problem

1998-Present CLK200, CLK230, CLK320, CLK350, CLK430, CLK500, CLK55 AMG, CLK63 AMG, CLK DTM AMG
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PeterQ
C Class
Posts: 33
Joined: Mon 26 Jan, 2015 6:18 pm
Model you own: w116
Region: Western Australia
Location: Bridgetown

CLK500 772.6 transmission problem

Post by PeterQ » Sun 02 Sep, 2018 3:15 pm

Just changed the fluid and filter, plus the 13 pin connector. Now it won't move. Slight drop in revs when you engage R or D, but no go. No fault codes, no warning lights, dashboard resolutely says "No malfunction". Fluid was changed just because I got the car with 220000ks and nothing in the service history to say if it had ever been done. Any ideas?
2003 CLK500 convertible, latest successor to:
2006 W164 ML350 - 1999 S430L - Audi A6 C5 V8
Holden Crewman Cross 6 - Ford Territory - Holden Commodore VZ 6 speed Ute
Mercedes 450SEL 6.9 - Ssangyong Musso 3.2 - Mercedes 450SLC
and a litany of others...

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T-Modell
SLS AMG
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Joined: Mon 10 Apr, 2006 12:47 am
Model you own: w107
Location: Weinheim / Germany
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Re: CLK500 772.6 transmission problem

Post by T-Modell » Sun 02 Sep, 2018 4:22 pm

Hi,
the only idea I have - without knowing - would be, that the electronics of the car needs some sort of a reset, which can only be done with the MB tool. Maybe it has to do with that connector. Otherwise it could be the wrong oil or not enough in it ... you checked the right oil and amount?

Regards
Thomas
---------------------------------------------------------------
1967 W111 250SE Cabriolet, horizon blue
1973 W115 220D 5.0 Pick-Up Argentina, work in progress 2017/18/19
1986 R107 500SL, arctic white, the midlife crisis viagra replacement
2007 R171 SLK350, calcit white
2008 S211 E63T, calcit white, sleeper

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PeterQ
C Class
Posts: 33
Joined: Mon 26 Jan, 2015 6:18 pm
Model you own: w116
Region: Western Australia
Location: Bridgetown

Re: CLK500 772.6 transmission problem

Post by PeterQ » Sun 02 Sep, 2018 8:13 pm

I have an icarsoft MB unit and there are no codes showing. We're coming to the conclusion that the filter is not fully home - it was a pig to get installed, very hard to get it in with it's new O ring.
2003 CLK500 convertible, latest successor to:
2006 W164 ML350 - 1999 S430L - Audi A6 C5 V8
Holden Crewman Cross 6 - Ford Territory - Holden Commodore VZ 6 speed Ute
Mercedes 450SEL 6.9 - Ssangyong Musso 3.2 - Mercedes 450SLC
and a litany of others...

Manya3084
A Class
Posts: 10
Joined: Sat 11 Aug, 2018 10:53 pm
Model you own: w209
Region: Victoria
Location: Melbourne

Re: CLK500 772.6 transmission problem

Post by Manya3084 » Sun 02 Sep, 2018 10:24 pm

If you haven't cured it with the filter re-seating, it could be the the next 2 issues.

1. Did you remove the valve body when you changed the fluid?

There is a slider pin that needs to seat correctly in the gear shift cog when you reinstall it. The car won't change into any gear without being in the correct position.

2. Your conductor plate maybe on it's way out. Looking through the net, it's a common issue that the conductor plates start to fail resulting in poor, or even no shifting (This part basically links the transmission computer with the solenoids in the valve body).

They can be purchased relatively cheaply from ebay, (I bought mine from aliexpress with connector seal/filter/pan gasket for $120.). Changed mine out last weekend and it only added an extra 30 minutes to the task.

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PeterQ
C Class
Posts: 33
Joined: Mon 26 Jan, 2015 6:18 pm
Model you own: w116
Region: Western Australia
Location: Bridgetown

Re: CLK500 772.6 transmission problem

Post by PeterQ » Sat 08 Sep, 2018 3:09 pm

Think I have the answer. I will need a conductor plate because my 13 pin connector only has 12. One is broken off in the connector. I suspect that was why it was already a bit slow going into D, but disturbing it by replacing the connector bit meant there was no longer any connection at all. The old connector came undone easily and the plug pulled from the socket easily, so I doubt it broke then. So now I have to get an immobile car back up onto the ramps.
2003 CLK500 convertible, latest successor to:
2006 W164 ML350 - 1999 S430L - Audi A6 C5 V8
Holden Crewman Cross 6 - Ford Territory - Holden Commodore VZ 6 speed Ute
Mercedes 450SEL 6.9 - Ssangyong Musso 3.2 - Mercedes 450SLC
and a litany of others...

User avatar
PeterQ
C Class
Posts: 33
Joined: Mon 26 Jan, 2015 6:18 pm
Model you own: w116
Region: Western Australia
Location: Bridgetown

Re: CLK500 772.6 transmission problem

Post by PeterQ » Sat 08 Sep, 2018 5:29 pm

Now that was weird - got the car up off the ground, removed the drain plug, nothing. No fluid. So where did about 6 litres go? Poured it down the tube at rear right of the engine bay. Specially purchased dipstick says there's oil there, nothing on floor since last weekend, oil on dipstick is pristine and new, so not mixed with engine oil or something else. Any ideas?
2003 CLK500 convertible, latest successor to:
2006 W164 ML350 - 1999 S430L - Audi A6 C5 V8
Holden Crewman Cross 6 - Ford Territory - Holden Commodore VZ 6 speed Ute
Mercedes 450SEL 6.9 - Ssangyong Musso 3.2 - Mercedes 450SLC
and a litany of others...

User avatar
PeterQ
C Class
Posts: 33
Joined: Mon 26 Jan, 2015 6:18 pm
Model you own: w116
Region: Western Australia
Location: Bridgetown

Re: CLK500 772.6 transmission problem

Post by PeterQ » Sat 08 Sep, 2018 7:47 pm

Buggar. I just figured it out - 5-6 litres of ATF in the engine. Only now, with the plastic covers removed is the real transmission filler tube revealed. My car does not have a dipstick for the engine, but this tube is where it would go if there was one. Right next to, and far more visible than the correct one for the transmission. I didn't question the difference in the cap on the tube because I've had other parts that don't match what pictures and videos show - I couldn't replace the sway bar bushes because, contrary to the EPS (armed with my VIN), I do not have separate bushes. I had to buy an entire sway bar. I still can't find that in my EPS.
2003 CLK500 convertible, latest successor to:
2006 W164 ML350 - 1999 S430L - Audi A6 C5 V8
Holden Crewman Cross 6 - Ford Territory - Holden Commodore VZ 6 speed Ute
Mercedes 450SEL 6.9 - Ssangyong Musso 3.2 - Mercedes 450SLC
and a litany of others...

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