goodpw
Active Member
- Joined
- Jun 22, 2011
- Messages
- 69
- Location
- Shropshire
- Car
- C270cdi Av (Gone) CLK500 Avantgarde (Gone) SL500 (R230)
Hi Guys.
I know this has been covered many times but each thread I have read has slightly different symptoms, so here is what I am seeing.
2002, SL500 (R230) 104000Miles. car used mainly for daily short trips (waste of a great car really)
1st symptom was "electric consumers are offline" alert when started, went away & everything worked after 10 minutes running.
I suspected it may be the battery giving up so used what I believe is an AGM compatible trickle charger overnight, this topped the battery & showed 12.2v (engine off/13.7V engine running).
The "offline" message did not appear again for a few weeks.
"electric consumers are offline" message returned quickly followed by the red "visit workshop" & Battery symbol alert. turns off by switching sreens while driving but shows as fault when engine switched off.
So I replaced the boot battery with a brand new one from Merc (156 quid), red alert still showing so ran it round for a couple of days just to top it up a bit.
Engine off voltage is - Starter Battery 12.2v / Boot aux battery 12.1v
Engine running voltage is - Starter Battery 14.1v / Boot aux battery 13.8v
Everything works fine....except for the red "visit workshop" & Battery symbol alert.
Borrowed a Delphi DS150E diagnostic, this showed up a few intermittent (seems historic) fault codes so I cleared them all & have run the program several times after each drive & no faults showing.
I'm now at a bit of a loss what to do, I can live with the light (just) as long as its not actually trying to indicate a serious fault, but the MoT is due next month & I seem to think ANY dash warning lights is a fail.
Again, I know this is a well documented problem but I'm stumped.
Cheers.
Phil.
I know this has been covered many times but each thread I have read has slightly different symptoms, so here is what I am seeing.
2002, SL500 (R230) 104000Miles. car used mainly for daily short trips (waste of a great car really)
1st symptom was "electric consumers are offline" alert when started, went away & everything worked after 10 minutes running.
I suspected it may be the battery giving up so used what I believe is an AGM compatible trickle charger overnight, this topped the battery & showed 12.2v (engine off/13.7V engine running).
The "offline" message did not appear again for a few weeks.
"electric consumers are offline" message returned quickly followed by the red "visit workshop" & Battery symbol alert. turns off by switching sreens while driving but shows as fault when engine switched off.
So I replaced the boot battery with a brand new one from Merc (156 quid), red alert still showing so ran it round for a couple of days just to top it up a bit.
Engine off voltage is - Starter Battery 12.2v / Boot aux battery 12.1v
Engine running voltage is - Starter Battery 14.1v / Boot aux battery 13.8v
Everything works fine....except for the red "visit workshop" & Battery symbol alert.
Borrowed a Delphi DS150E diagnostic, this showed up a few intermittent (seems historic) fault codes so I cleared them all & have run the program several times after each drive & no faults showing.
I'm now at a bit of a loss what to do, I can live with the light (just) as long as its not actually trying to indicate a serious fault, but the MoT is due next month & I seem to think ANY dash warning lights is a fail.
Again, I know this is a well documented problem but I'm stumped.
Cheers.
Phil.