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> V40 Headlamp Problem.
Geordievolvo
post Nov 6 2012, 07:36 AM
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My Volvo v40 (X reg. year 2000) has a fault on the front offside headlamp. The dipped beam does not work, although the full beam is still working. Tried new bulb but the problem persists. The headlamp fuse is OK. This morning I have been to a local garage but they cannot find the answer, even after fitting a new electrical connection box, and trying 3 different bulbs. The power is getting to the headlamp unit, but for some reason the bulb is not lighting on dipped beam.
Does anyone have any idea as to the cause and the remedy ??
There are a couple of posts in here re headlamp faults, but I can find nothing in them to point me in the right direction.
Hoping someone has the answer for me.
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grendel1960
post Nov 6 2012, 08:16 AM
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check the wiring from the socket in the headlamp unit to the bulb holder itself. if the power is getting to the connector then it must be inside the headlamp unit.
Grendel
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grendel1960
post Nov 6 2012, 08:53 AM
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just popped out and looked at mine the unit wires right to the bulb, have you checked the fusebox and lighting switch?, though if you have power to one dipped light you should have it to both, unless there is a fault in the wiring. the bulb should work just plugged into the socket without being seated in the headlight unit, if not then the power isnt getting to the headlight, check the lighting relay, and maybe the lighting check relay (the one that tells you there is a bulb out).
Grendel
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Geordievolvo
post Nov 7 2012, 03:30 PM
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Will enlighten you all tomorrow re the problem. Just paid over £400 to have the problem solved at a Volvo main dealer. Whether they have been ripping me off, or their diagnosis was correct, I do not know.
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grendel1960
post Nov 7 2012, 05:19 PM
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Ah about 5 hours work if thats without parts. I was quoted £440 to replace a ecu connector once - the £40 was the part, I ordered the part and spent 3 hours carefully rewiring it one wire at a time (about 30 wires in the connector).
Grendel
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Geordievolvo
post Nov 10 2012, 09:40 AM
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The cost for the repair was £170 for the complete headlamp unit; £190 for labour; then vat on those. Everything working fine now. A friend who works in a forensic lab states that nowadays cars develop faults in the electrical/wiring systems,whereas years back one of the main problems was welding re the bodywork. Apparently wiring in modern cars is not as 'tough' as wiring quite a few years ago. The wiring is much thinner and corrodes more easily. Another suggested remedy is to make use of WD40 re electrical problems - spraying with that one some parts of the electrics may help solve a minor problem, and prevent it recurring.
I may be changing from Volvo the next time I need a car change. THey do not seem as reliable as what they used to be. At least not as reliable as my 20 year old Volvo 850 which had to be scrapped in Aug. this year.
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grendel1960
post Nov 10 2012, 12:51 PM
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I am just getting to that point too, I have an 850 that needs a fair bit of work and the v40, and unfortunately the 850 needs to go as the list of problems grows daily (at 265,000 miles its to be expected. I too had to replace one of my headlights when I got the car, mine was because the reflector had worn and the beam unfocused and dim.

Grendel
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