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Old 10-08-2017, 09:48 PM   #1
PromiseRing
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Default 240 Brake Light Engagement

93 245

Edit: upon further investigation, it looks like the switch may be held on with 2 of those low profile nuts; thus allowing for adjustment already. Maybe?


I'm wondering if anyone here has successfully adjusted when their brake lights come on. On my 245, I've noticed that mine come on after the brakes have already started engaging. This is dangerous. I'd like them to come on the second I touch the brake pedal. It seems that the plunger in the switch comes out almost a 1/4" before they engage.

Ways to fix? I see the threaded portion of the switch is held to the bracket/assembly via a low profile nut on the back. I'm wondering if it's acceptable/safe to remove that nut, pull the switch out, and then install washers inbetween the switch and the bracket/assembly and reassemble. This way that plunger would already be sticking further out in the neutral position. I'm not sure if the way I worded that was understandable but I hope it was. Thanks
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Old 10-09-2017, 01:43 PM   #2
283SD
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Adjust the nuts in or out so that the brake lights come on just after the pedal leaves the stop position.
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Old 10-09-2017, 01:50 PM   #3
PromiseRing
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Quote:
Originally Posted by 283SD View Post
Adjust the nuts in or out so that the brake lights come on just after the pedal leaves the stop position.
Yeah when I first looked at it in the car I didn’t see that there were 2 nuts allowing adjustment, I’d just seen the 1. Looks like adjusting those will fix my issue.
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Old 11-08-2017, 12:10 AM   #4
PromiseRing
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I just want to clarify that my 93 245 did not have 2 locking nuts, but just the one nut that fastened it to the brake light switch bracket. I removed the unit, added 2 washers, and reinstalled. Helped a bit.

Has anyone else removed theirs from their 240 and found 2 nuts, or just 1? Thanks
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Old 11-08-2017, 12:10 AM   #5
PromiseRing
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Old 11-08-2017, 09:47 AM   #6
esmth
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mine has a single nut
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Old 11-08-2017, 03:45 PM   #7
Khrrck
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It looks like the original part just has one nut on it, but the aftermarket ones with two should work just fine.

https://parts.smithvolvo.com/a/Volvo.../GR-43552.html
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Old 11-09-2017, 12:08 PM   #8
Chad242ti
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Default Brake Light Switch

I put a thick washer behind the switch on my 91 240. It had a single nut as well.

Chad
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