LH Module

[C061]

So my fuel relay is clicking, and I’m needing a new LH Module.
Does anyone have a lead on one, or possibly somewhere to send in for repair?

Thanks!

 

[Redrodent]

I’m at the same crossroad. Any mom and pop electronics repair store can recap it. Or for roughly the same price get a soldering station kit off Amazon ( not Harborfreight) and some caps. Practice on some junk around the house, and voila! Just a matter of convenience. At this point in time, any used ones are aging out too.

 

[C061]

I’m at the same crossroad. Any mom and pop electronics repair store can recap it. Or for roughly the same price get a soldering station kit off Amazon ( not Harborfreight) and some caps. Practice on some junk around the house, and voila! Just a matter of convenience. At this point in time, any used ones are aging out too.

I have already found a replacement, but I will be attempting at doing exactly this with the original unit!

 

[luckymike]

I dd the cap replacement job. It was not complicated. Unfortunately I don't know if it worked because I discovered that my spare LH was for a W140, not my E420, and doesn't function exactly the same so I can't test it.

Bottom line: Go for it. Just take your time and be careful.

 

[gerryvz]

An LH fuel injection computer should work with any compatible/equivalent engine/chassis, meaning an E420/400E LH should work fine with a W140 4.2-liter engine. Same with the 5.0 liter LH engines in the 129, 124 and 140. MB has superseded the LH units down to a single unit nowadays for all chassis anyway (one for the 4.2 and one for the 5-liter variants).

Of course there are WOT and non-WOT variants of each LH unit, but the WOT units haven't been avaialble for quite some time.

 

[gsxr]

Note that the 124.034 still requires a different, specific module due to relay K29/1 which is unique to that chassis. Weird shifting stuff happens otherwise, unless you also delete K29/1...

 

[Redrodent]

I may have gotten the last original WOT. It’s. marked 6/92. Doesn’t really make a difference but let me dream my little dream.

 

[C061]

I may have gotten the last original WOT. It’s. marked 6/92. Doesn’t really make a difference but let me dream my little dream.

My original unit was a 06/92 as well