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#1
Mechanicals / Re: Replacing Indicator Relays
Last post by rumb - Today at 07:58 AM
Not so much replace as it would be fixing. Replacing wires isnt fun.
#2
Mechanicals / Over heating m110 engine
Last post by Magyar - Today at 06:10 AM
Hi, all of the M110 powered 280se cars ive owned overheated, why do these engines always over heat?

How do I prevent it from over heating?

Is the temp below too high?
#3
Mechanicals / Re: Over heating m110 engine
Last post by mrkozzy - Today at 05:34 AM
Ditto to the comments by rumb'

I've only overheated 2 times in my cars 45 year ownership.
Both times was down to some part of the system being worn or dated.
And just recently I discovered the system losing water. It was simply simply a faulty radiator cap.
I've taken the radiator out 3 times now, roughly every 10 years and sent it off to be professionally cleaned in an acid bath. Perhaps thats kept it in good stead.
#4
Mechanicals / Re: Replacing Indicator Relays
Last post by Alex - Yesterday at 08:47 PM
Quote from: rumb on Yesterday at 08:28 AMCheck the resistance and voltage  of wires in each socket. I would expect them to be similar.

Also be aware bad grounds lead to problems. The main ground for the rear harness is behind the RR passenger seat.

I will take a look at the grounding cable this afternoon. If the resistance of the wires is different, would it be best to just replace them?
#5
Test Drive / Re: My 6.9's
Last post by rumb - Yesterday at 01:09 PM
IT's ALIVE!  Well.... sort of.  3 out of 4 corners are now risen. Right front not so much.  I suspect crud in lines or perhaps valve. Need to figure out diagnosis plan.  I will probably take small line off where it enters accumulator and see if fluid comes out and work back from there.
#6
Mechanicals / Re: Over heating m110 engine
Last post by rumb - Yesterday at 08:35 AM
Generally these cars need entire system to be in order. Radiator, fan clutch, thermostat and water pump. And ac fan.
#7
Mechanicals / Re: Replacing Indicator Relays
Last post by rumb - Yesterday at 08:28 AM
Check the resistance and voltage  of wires in each socket. I would expect them to be similar.

Also be aware bad grounds lead to problems. The main ground for the rear harness is behind the RR passenger seat.
#8
Mechanicals / Re: Replacing Indicator Relays
Last post by Gpapaniko - Yesterday at 08:01 AM
I'd use genuine or a very good auto electrician may have an alternative
#9
Mechanicals / Over heating m110 engine
Last post by Magyar - Yesterday at 06:30 AM
Hi, all of the M110 powered 280se cars ive owned overheated, why do these engines always over heat?

How do I prevent it from over heating?
#10
Mechanicals / Re: Replacing Indicator Relays
Last post by Alex - Yesterday at 01:55 AM
Quote from: Gpapaniko on 26 March 2024, 06:24 AMMy relay was under the dash on my 1980 280SEL, replaced it after slow flashing or indicators remaining stuck on.  Original OEM from Pelican Parts at around AU$250. Now works fine.  Fast flashing (if consistent) is a sign of bulb out not a relay in my experience.  One way to check is to swap out with a working relay from a mate with the same relay and see what happens then decide.  Check if bulbs and internal indicators work, you may also have a short in the rear tail light assembly - I'd give that a clean as well with some electrical contact cleaner.  Good luck

Don't have any mates with the same relay to be borrowing.

I have swapped the bulbs with fresh ones, and the issue persists. When I didn't have a bulb at all, it was real quick. (So the relay is changing with varied resistance). The internal indicators work fine. Where would a short for the rear tail light assembly be? - the housing is plastic.

Thoughts on aftermarket relays?