Battery / generator warning light

[Mikomotor]

Hi,

I have a March 2003 S with 26K on the clock.

Last week, in response to the above warning light coming on whilst driving, I first charged existing battery and then, with warning still showing, replaced with new battery. The warning light is still on.

I see that the handbook warns against driving the car and I'll ring my local OPC tomorrow to see if I should get the car towed in. Power steering still working fine.

So (assuming this is not a warning light malfunction), I'm guessing we're looking at a new alternator - seems fairly low mileage for this to happen?

Anyone been through anything similar?

Cheers,

Mike.

[juniinc]

Autozone or schuck's should be able to run some test .

I highly doubt it's the altornator. I'm thinking maybe old battery or the voltage regulator,,,

Hi,

I have a March 2003 S with 26K on the clock.

Last week, in response to the above warning light coming on whilst driving, I first charged existing battery and then, with warning still showing, replaced with new battery. The warning light is still on.

I see that the handbook warns against driving the car and I'll ring my local OPC tomorrow to see if I should get the car towed in. Power steering still working fine.

So (assuming this is not a warning light malfunction), I'm guessing we're looking at a new alternator - seems fairly low mileage for this to happen?

Anyone been through anything similar?

Cheers,

Mike.

[Tool Pants]

The most common problem with the alternator seems to be the regulator.

http://www.renntech.org/forums/index.php?s...nator&st=20

It is a standard 120 amp Bosch alternator used on other German cars, just the mounts are different depending on the application. I bought a rebuilt Beck/Arnley alternator on ebay and it says made in Grat Britain. Well, at least it is not made by Lucas....

You need to have the car checked to see if it is the alternator and if it is, what part is bad. Porsche wants a lot of money for a rebuilt alternator, and even more money for a new one. In the US we can buy a rebuilt alternator at local auto parts stores at a fraction of what Porsche wants, rather than from Porsche.

Unless you have a warranty you might take it to auto electrician to save money.

If the battery is fully charged I don't know what you cannot drive it to a place to determine of it is the alternator. After all, you were driving it when the light came on.