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Volvo 850 temp gauge dead

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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erikv11
Posts: 11803
Joined: 25 July 2009
Year and Model: 850, V70, S60R, XC70
Location: Iowa
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Re: Volvo 850 temp gauge dead

Post by erikv11 »

I thought true mileage moved with the odometer, stored in the electronics of that unit.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6 :shock: 153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k

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misha
Posts: 5379
Joined: 7 December 2008
Year and Model: '97 850 2.5 20v
Location: Serbia
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Post by misha »

No erikv11.
You can lower the mileage on the odometer mechanically,but true mileage remains stored in the cluster(cluster module).

The odometer unit is just odometer,gears and motor.
Memory is somewhere in the cluster along with diagnostics.
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS

chrillew
Posts: 79
Joined: 27 October 2013
Year and Model: volvo 850 T-5R 1995
Location: Sverige
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Post by chrillew »

I swapped over The replacement cluster, but kept The old mechanical unit. Now everything works including The diagnostic. And was able to reset The servicelight yey!
If you say True mileage follows The cluster i think i have to live with that.. Sadly.

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