manfred_blitz56
GLA auxiliary battery failure
4 comment(s)
manfred_blitz56 (Author)
Voltage drop how would I check that
danielkeller1
The voltage drop can often be observed with a multimeter while the engine is starting. I did not perform the test myself; I entrusted my vehicle to a workshop for diagnosis and repair. Given the potential for electrical issues, I would advise seeking professional assistance to prevent further complications. My dealership diagnosed a faulty auxiliary battery and replaced it, resolving the starting problems.
manfred_blitz56 (Author)
Understood. Workshop it is. New auxiliary battery fitted. Cleared the errors. 290€. All good.
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danielkeller1
I drive a Mercedes C-Class and I experienced a similar issue some time ago. The error messages and difficulty with engine start pointed to a problem with the auxiliary power system. Have you observed any voltage drop when starting the car It is a common symptom of battery failure.