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Discussion Starter · #1 ·
1st question what wires on headlight knob do I hook boost guage light wires to? Car is 1998 s70 t5. 2nd question, how do I turn service light off? My obd2 scanner won't do it.
 

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Use the cig lighter for boost gauge illumination.

You should be able to reset the service indicator by using the ignition switch and the odometer button on most models, im new to the first gen 70 series but maybe like this:
Turn ignition switch to position 1
Press and hold the odometer reset button
Turn ignition switch to position 2
Wait until service light blinks and then release odometer button
 

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Use the cig lighter for boost gauge illumination.

You should be able to reset the service indicator by using the ignition switch and the odometer button on most models, im new to the first gen 70 series but maybe like this:
Turn ignition switch to position 1
Press and hold the odometer reset button
Turn ignition switch to position 2
Wait until service light blinks and then release odometer button
Haven't seen that work on '98s. Need a dealer quality scan tool to do that reset is my understanding, of course CEL's can be erased with any standard code reader.
 

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Haven't seen that work on '98s. Need a dealer quality scan tool to do that reset is my understanding, of course CEL's can be erased with any standard code reader.
Yep, it's generally a dealer/volvo specialist only. I would imagine any dealer would do this for free if you stopped by.
 

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Discussion Starter · #5 ·
The service light must not be a code cause when I chichi for codes it says 0 codes, I will try the ignition thing. And as for boost guage I want to wire it to headlight know wires just need to know which wire is power when knob is turned on and which is ground
 

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Service light is a SERVICE light (only), not a check engine light
Dealer only for 98s
 

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Discussion Starter · #8 ·
Dealer only? That sucks. I guess it will have to stay on until I get the timing belt changed in 40,000 miles. So I'm guessing black is ground and other power? Thanks for the info
 

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Dealer only? That sucks. I guess it will have to stay on until I get the timing belt changed in 40,000 miles. So I'm guessing black is ground and other power? Thanks for the info
You can drop by and they'll do it in the parking lot. 5mins tops
 

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You can drop by and they'll do it in the parking lot. 5mins tops
That really depends on the dealer. Here in Santa Barbara if you want them to turn off the service light, they charge you $45 for that 5 min. job. It turns itself off after a couple of minutes of run time, I've learned to ignor it.
 

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Discussion Starter · #11 ·
My dealer won't even let me ask a question without s appointment, so I will just ignore it, by the way is there a way to visually tell if the timing belt needs to be changed? My car just hit 160,000 miles and I have no idea when the belt was changed, when I took the cover off to look, I didn't see any wear, except little hairs of rubber on sides of teeth, which looks like normal wear but the belt looked good to me.
 

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That really depends on the dealer. Here in Santa Barbara if you want them to turn off the service light, they charge you $45 for that 5 min. job. It turns itself off after a couple of minutes of run time, I've learned to ignor it.
That's insane! We do SRL resets, bulbs, blades, & top ups for free for walk-ins.
 

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My dealer won't even let me ask a question without s appointment, so I will just ignore it, by the way is there a way to visually tell if the timing belt needs to be changed? My car just hit 160,000 miles and I have no idea when the belt was changed, when I took the cover off to look, I didn't see any wear, except little hairs of rubber on sides of teeth, which looks like normal wear but the belt looked good to me.
IF you have 160K, and no idea when it was done, DO IT!! No if, ands or buts....It's not worth taking chances, if the belt breaks, you lunch the head and looking a big bucks for recovery. Buy good quality, and replace the water pump at the same time to prevent secondary issues.
 

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Agreed
 

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How much does the Volvo dealer usually charge for timing belt change?
Possibly a call to your local Volvo service desk would provide you the most accurate information.
 

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Should I replace pulley, tensioner, and water pump as well?
ABSOLUTELY Very cheap insurance, so to speak, any one of those items failing will cause lots of heartache.
 

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Discussion Starter · #19 ·
Went to the dealer today, to find out price for timing belt change. $190 for parts, and $304 for labor, I guess that's not to bad, will be getting it done sometime this month.
 
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