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mot failure abs light on
Topic Started: Sun Apr 11, 2010 8:55 pm (2,977 Views)
paulduncan
Newbie
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hello all just got my failure notice of mot abs light not on so i pulled the dash apart and saw the bulb had been removed so put in a replacemant bulb and the light is on all the time. also emmissins not great either stalling and backfireing under low rev acceleration( a spot of redex help????). I have herd that the ovp relay can be at fault i had a look at the fuse and it is fine any further help would be great thanks.
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Marv
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Evo II Wheel
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Could be the OVP its self. The Joints dry up in they as they get old.
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balamb37
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Grumpy Old Grampa with Dog
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I'm inclined to agree with Marv.

OVP Relay would give you those symptoms.

Check the fuse on top, if no change unplug the OVP and check the contacts and plug it in again,

If still no change it could be a 'Dry Joint' inside.

Check Kentrix' pinned at the top 'Fixing Dry Joints' I think it's called.
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stwat
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Yes i totally agree. They are classic faulty OVP symptoms.
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EddieJT
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What is an "OVP"?
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balamb37
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Grumpy Old Grampa with Dog
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Over Voltage Protection Relay, normally situated behind the battery, the relay with a fuse on top.
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smiffy
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just strumming me paws...........hum-de-hum!
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without looking what cc is your 190.

abs light would strongly indicate ovp relay..............but im not 100% its the relay..........sorry guys^^^^
Edited by smiffy, Mon Apr 12, 2010 1:35 pm.
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paulduncan
Newbie
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the merc is a 190e 2.0l auto k reg i have pulled the fuse out and it is fine nothing wrong with it just going to remove everything that is in the way of getting the relay out battery etc tonight to have a look and see if it is connected correctly. i was also going to take the hubs off the front to see it the sensor faces are gummed up with brake and road muck i seem to remember my other merc having the same problem and when i was doing the wheel bearing i gave it all a clean up and it was fine after that. Maybe just coinsidence ^o)
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Marv
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Evo II Wheel
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You can remove the OVP with the batter in place, just remove the skuttle tray from under the window and you should be able to reach over the battery to it. You might hurt yur wrist abit but it saves time.
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190ian
190ian
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mine past the mot with abs light on
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shrekky
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Troll hunter
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190ian
Mon Apr 12, 2010 5:16 pm
mine past the mot with abs light on
it shouldnt have..................its a automatic fail :huh: light should come on with the ignition and extinguish a few seconds after the engine has started,anything else is a fail



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190ian
190ian
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will it got past,

my light comes on after 5-10 mins after starting from cold then stays on
Edited by 190ian, Mon Apr 12, 2010 5:45 pm.
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paulduncan
Newbie
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here is the latest you need hands of a two year old and the strength of golliath to get that bloody ovp relay out lost skin also lmao any how the connector for the relay is not broken and the joints look fine the relay not so sure about it so i think i will remove my wheel hubs and clean the abs sensor teeth and the pick up ring on both sides not looking forward to it though dont want knackered wheel bearings as my next mot failure lmao . Im stumped if it is not is there any other way around this light problem ^o)
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