Cluster removal on my 91 300D seemed really tight,is there enough slack in the speedometer cable to get it far enough out to unscrew the cable and lube?
At 177 k miles it's probably a little dry.
Thanks, rebel86,

There is an S bend in the cable below the dash before it penetrates the floor in a 124. Enough slack to pull the cluster out enough to reach in and undo the cable.

ATF is a good cable lube. Dribble down the cable sheath.

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The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)

both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech

Removal of the cable is not difficult, the hardest part is to push the rubber grommet on the firewall out and then get it back in. You can remove the cluster and then put penetrating oil in through the cluster hole. My experience is that you need to replace the cable.

I purchased an aftermarket cable made by Febi. If I had to do it again, I would buy the MB OEM part.

Packman

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83 240D - 4 speed manual - Manilla Beige
189K miles, Tachometer mod, cool wooden shift knob from PeachParts, CocoMats, Original factory paint, manual windows, manual sunroof. Starting to add AudioWrap to this car too!

Thanks for the replies, still haven't got it done yet.
rebel86

I just did this on my 124, when I unscrewed the connector there was a lot of dried grey crud in there and the back of the cluster which I assume was lube/grease at some point. I cleaned it out and used a little silicone spray. Works fine now.

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1993 320TE M104
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past:

1983 230E W123 M102
1994 E300D S124 OM606 (x2)
1967 250SE W108 M129
1972 280se 3.5 W108 M116
1980 280SE W116 M110
1980 350SE W116 M116
1992 300E W124 M103
1994 E280 W124 M104
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"music and women I cannot but give way to, whatever my business" -Pepys