valve job and airbag light on 2003 Volvo S40

How much should I expect to pay for valve job? Also when I had new battery installed the air bag light came on, the shop claimed it was on when I came in.
Thanks

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1 answer
this is not a job to be given to just any shop. you really need to find a local Volvo specialist to confirm that this work is really needed. while this website is great for some questions, you're not going to drive 5 or 6 hours to save $100. ask other Volvo owners who they use.