About Mark H. Mathis Expertise All drivetrain, powertrain, suspension, electronics, body, brakes,SRS and general. Weakest in automatic transmission disassembly and repair.
Experience 1979-2004 owned and operated Automen Inc. Specialized in import vehicles only. Master of Euros. Audi, BMW, Saab, Volvo, VW, Jag., Porsche, Mercedes, MG, Triumph and some Alpha/Fiat. Very strong in Asian. Weak on Domestic.
Organizations ASE, IATN, BBB, NWYC, SBA.
Publications IATN, RAMAC
Education/Credentials ASE Master Tech. 30years. L1, CMAT
Awards and Honors 3 healthy beautiful and smart children
Volvo Repair - Volvo V70 year 2000 erratic temp gauge
Expert: Mark H. Mathis - 4/29/2009
Question Hi, my V70 1st of the new shape, is coming up with erratic temp gauge readings all is fine then it drops to zero, then comes back later, also receiving coolant low message once in a while and it does need to be topped up. help
Answer Sorry this is late. I had an unexpected surgery and will be out for a while.
Nigel, first check the coolant level and be sure you have no air pockets, then check the connector and wire integrity at both of the sensors. The coolant level sensor in the coolant reservoir and the coolant temp sensor on the motor. If all ok, be sure all software upgrades have been performed. Lastly, check for headgasket leakage.
