S40 Sport - sensors in engine bay - where do they go?

Paudman · May 9th, 2009, 09:20

Hi folks - I'm in the middle of a home-repair of a front damaged S40 Sport and it's.... fun. Not. Engine radiator and all sorts of other mechanical bits have been replaced but I've got two sensors, one black and one blue on either side of the engine around the headlamps and can't identify where they fit. Blue one is in front of me now and has the part number 8651201, made by Temic with the additional numbers MRSA5 and 8042A4. They're just hanging loose on cables at the moment with two long bolts through each - any idea where they bolt to?

I have a feeling I'm going to be using this forum a lot..... all help appreciated!

Guru · May 9th, 2009, 10:26

Don't think this will help much but couldn't find something more detailed, at least you can in which vicinity they are (no. 9 and 10), and according to the part number there're identified as airbag sensors from the restraining system.
no. 9 is 8651200
no. 10 is 8651201

Clan · May 9th, 2009, 10:32

Those are the crash sensors , they give the system early warning of a crash happening they fit on the upright panels behind the headlamps about 4 inches below the top plate towards the centre end of the headlamps . They are sided too so need fitting on the correct side . It would be easier to look at another car if you can to see the exact location ..

Guru · May 9th, 2009, 10:40

Paudman · May 11th, 2009, 19:08

Quote:

Originally Posted by Clan

Those are the crash sensors , they give the system early warning of a crash happening they fit on the upright panels behind the headlamps about 4 inches below the top plate towards the centre end of the headlamps . They are sided too so need fitting on the correct side . It would be easier to look at another car if you can to see the exact location ..

Thanks for that, although no matter how I rotate them I can't find three holes that will line up with the two bolts and the small tab. I really need to find an identical car or get a few good photos, I can't work out how the horns fit either...

Paudman · May 12th, 2009, 19:08

Found where the horns go, so that's sorted... but I still can't find holes which line up with the sensor mounts and the little plastic tab.
This is a photo of the passenger side - anyone point me towards the right area?

Guru · May 14th, 2009, 16:31

Notice the relation to the headlight fixing pin ect...

Paudman · May 16th, 2009, 11:26

Guru - you are an absolute gem among Volvo owners - this is exactly as required, worth a million descriptions and will get me one step closer to completion.
Thank you!

May 9th, 2009, 09:20	#1
Paudman New Member Last Online: Oct 23rd, 2009 15:13 Join Date: Dec 2007 Location: Banbridge	S40 Sport - sensors in engine bay - where do they go? Hi folks - I'm in the middle of a home-repair of a front damaged S40 Sport and it's.... fun. Not. Engine radiator and all sorts of other mechanical bits have been replaced but I've got two sensors, one black and one blue on either side of the engine around the headlamps and can't identify where they fit. Blue one is in front of me now and has the part number 8651201, made by Temic with the additional numbers MRSA5 and 8042A4. They're just hanging loose on cables at the moment with two long bolts through each - any idea where they bolt to? I have a feeling I'm going to be using this forum a lot..... all help appreciated! __________________ Artificial Intelligence is no match for Natural Stupidity

May 16th, 2009, 11:26	#8
Paudman New Member Last Online: Oct 23rd, 2009 15:13 Join Date: Dec 2007 Location: Banbridge	Guru - you are an absolute gem among Volvo owners - this is exactly as required, worth a million descriptions and will get me one step closer to completion. Thank you! __________________ Artificial Intelligence is no match for Natural Stupidity

May 9th, 2009, 10:40	#4
Guru Premier Member Last Online: Oct 25th, 2023 07:46 Join Date: Feb 2009 Location: Between chair and keyboard

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