Hello all,

I have resoldered the cruise amplifier in my 1986 300SDL but it still doesn't work. This unit is the 14-pin style with the "mustard" yellow plastic end piece. I don't have the exact part # off the unit in my SDL but I believe it would be 003 545 86 32.


I am able to get another unit which came out of a 1985 W123 300TD. I know these are significantly different cars, but the unit is also 14-pin, has the yellow end connector, and looks exactly the same. The part number on this unit is 002 545 91 32.

Will the W123 unit work in my car?

Thanks!
Neal

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'83 300SD 335,000km (207k) mi SOLD
'87 560SL 163,000km (101k mi) SOLD
'86 300SDL 356,000km (220k mi) SOLD
'92 500SEL 250,000km (155k mi) SOLD
'90 300SL 140,000km (87k mi) SOLD
'01 S430 260,000km (161k mi) SOLD
'03 SL500 167,000km (104k mi) SOLD
'07 S550 4MATIC 235,000km (146k mi) SOLD
'07 GL320 CDI 4MATIC 348,000km (215k mi)
'13 GL350 BlueTec 4MATIC 170,000km (105k mi)
'14 SL550 72,000km (43k mi)

I have a 1982 123 unit that does not work in my 82 126. I doubt your would interchange either.

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1984 300Sd 210k

Former cars:
1984 300D 445k (!!) (Strider) Original (and not rebuilt) engine and transmission. Currently running on V80 ( 80% vegetable oil, 20% petroleum products). Actually not, taking a WVO break.
1993 300d 2.5 275k. Current 120/day commuter
1981 300SD 188k (Hans) Killed by a deer

I plugged a CC unit from an 82 SD into my 84 D and it worked about as well as the one it replaced, which was intermitant at best. But it did work... RT

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When all else fails, vote from the rooftops!
84' Mercedes Benz 300D Anthracite/black, 171K
03' Volkswagen Jetta TDI blue/black, 93K
93' Chevrolet C2500HD ExCab 6.5TD, Two-tone blue, 252K