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victoriaschroeder1

Spider Auxiliary Heater Fault

My 1998 Renault Spider, gasoline-powered with 77388 km, has an auxiliary heater problem. The parking heater won't activate and shows an error. Could a bad glow plug cause this?

4 comment(s)

peter_blitz9

The symptoms suggest a glow plug issue. Given the Spider's age, it's plausible. Have you checked the glow plug resistance with a multimeter?

victoriaschroeder1 (Author)

I've only checked the error memory. Accessing the glow plug for resistance testing is hard without special tools. Would a resistance check isolate the problem, or are there other possibilities?

peter_blitz9

A resistance check is indicative but not foolproof. However, a defective glow plug is the prime suspect. Further diagnosis without equipment is risky. A professional evaluation is needed to confirm the fault and prevent complications. Expect a repair around 440€.

victoriaschroeder1 (Author)

A workshop visit confirmed the glow plug was the problem, as you suspected. The auxiliary heater works now. Thanks for the help.

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