Electrical problems.

1993-Present: C200 CDI, C220 CDI, C270 CDI, C180, C200 Kompressor, C230 Kompressor, C220, C230, C280, C300 C350, CGI & CDI BlueEfficiency variants
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Posts: 110
Joined: Tue 24 Feb, 2015 5:00 pm
Model you own: w202
Location: Melbourne, Australia

Electrical problems.

Post by newMercowner69 » Tue 05 Dec, 2017 1:59 pm

After fully charging the battery after Werner/Wilhelm locked me out&kicked me out last week,
Now what's happening is hazard lights come on even though i've NOT depressed the hazard light button &NO indicators working,
&low coolant light's displayed although temperature gauge is reading normally!,
SHOULD i've got the onboard computer reset AFTER charging the battery?,
The Hazard lights come on at same time as indicator's clicked on! :(.

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Mercedes Demigod
Posts: 5831
Joined: Sat 12 May, 2007 2:21 pm
Model you own: w204
Location: Melbourne

Re: Electrical problems.

Post by Ivanerrol » Tue 05 Dec, 2017 10:54 pm

ECU in these cars is dumbarse. No reset.

You need to resync the key with the immobilizer.
If you have the books - the method is in there.
If you don't YouTube is your friend. Take note that there are different sync methods you need to try them all before your keys might sync.
W211 - E240
W204 - C280
W202 - C200, C180, C180
W126 - 380SE , 380SE (Ex SA Import), 560SEL
W124 - 300e, 260e (ex Japan)
W111 220s (Indonesia) 4 speed manual column shift
W123 230
W116 450SEL
W140 420SEL
W210 E240, E240
W209 CLK 240
W201 190e 2.6 (ex U.K.)

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