Quote:
Originally Posted by AcIdBuRn
Re-flow the solder joints on the tach amp. Thats the most common issue. For my year, its a round black piece on the driver's side inner fender. Lots of info on how to do it and its pretty easy. Fixed mine in ~30 minutes.
I didn't add any solder. Just used my iron to melt and re-flow each solder joint on the back side of the unit. It's covered in glue so take your time to clean it off.
https://www.benzworld.org/threads/the-permanent-tachometer-amplifier-fix.1652194/ |
W124 and late W126 cars do not have a tach amp. The tach pulse is generated from the EDS computer and gets it's signal from the magnetic pickup located at the ring gear as mentioned above multiple times.
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Current stable:
1995 E320 149K (Nancy)
1983 500SL 120K (SLoL)
Black Sheep:
1985 524TD 167K (TotalDumpster™)
Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)
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