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23rd December 2016, 08:45 | #1 |
Regular poster
Rover 75 saloon Join Date: Nov 2011
Location: Wisbech
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"facelift" headlights going dim
The car is a "facelift" model and the headlights are normally pretty good, but they started going dimmer, inconsistently - garage diagnosed faulty voltage regulator and replaced the alternator. This initially improved things, but the lights soon went dim again - garage blamed defective replacement alternator and put in another new one, which initially improved things, but they soon went dim again. Two faulty new alternators seems unlikely - any suggestions, please? (yes, I have washed the lenses!)
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23rd December 2016, 10:27 | #2 | |
This is my second home
none but not gone Join Date: Mar 2013
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Quote:
I would look at chaffed loom over the drivers side front member (loads of pics and info on here).. a bad earth on the headlight plug looms or water ingress to the plug in the top of the LSM (light switch module). Could also be the main earth point or a corroded connection to the exciter side of the alternator. do the lights dim when you turn something in particular on? (heated rear screen, heated seats, stereo, blower or air con etc.) Pop down to March and I can take a quick look for you....
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[SIGPIC][/SIGPIC]….All praise Bananaswan…. |
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23rd December 2016, 10:45 | #3 |
This is my second home
R75 Saloon. Join Date: Feb 2009
Location: France/or Devon.
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All as Klarzy says above.
That garage knows NOTHING about checking alternators, and maybe other things as well. Give them a MISS next time you have a problem. Hope you find the problem and have a Merry Xmas.--- |
23rd December 2016, 10:46 | #4 | |
I really should get out more.......
Rover 75 CDT Club Tourer Join Date: Nov 2006
Location: Milky Way
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Quote:
Go back, ask them to check as suggested above, and as the alernator has made no difference ask for your money back,!!! |
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23rd December 2016, 12:20 | #5 |
This is my second home
Rover75 and Mreg Corsa. Join Date: Nov 2006
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Chafing of the wiring is a common problem.
Off side near the washer bottle. The welded seam is usual culprit. TC |
24th December 2016, 18:13 | #6 |
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Rover 75 saloon Join Date: Nov 2011
Location: Wisbech
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All sorted, thanks to Klarzy. Thanks to all for advice.
I took up Klarzy's offer to have a look. After it's trip to the garage yesterday he found: the end of the scuttle snapped off, the loom behind the o/s headlight trapped and kinked by incorrect fitting, corrosion in the n/s tail light plug, and the n/s main beam bulb working intermittently. Whilst he had the front bumper off he dismantled the light units, cleaned the projector lenses and polished the plastic covers, and even found time to make me a cup of coffee! The lights now work normally and the voltage has gone from 13.5 to 14.2. I'm going back in the new year to have a few other bits and pieces sorted out - result!!
Thanks again to Klarzy, and everyone who offered advice. |
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