Join Date: Mar 2012
Vehicle: 2000 230K blue
Other Toys: A Prius! Yes... that's right... a f.... Prius!
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P0560 System Voltage, ABS BAS/ASR
I have a SLK 230K which was fine, but suddenly it started doing weird things. After driving for a while it turned on the BAS/ASR and ABS lights but it was still fine, the lights went off after powering off the car and restarting it... Then, it was stuck on limp-mode (Stuck transmission on second gear and a weird "airplane like" engine sound). I used a scanner, and it returned a P0560 System Voltage... left the car without using it for a couple of hours and when it cooled down it was normal again... After a few days I noticed that when it revs up fast the lights come back, and if the acceleration is strong enough it goes to limp-mode... When the car is used for a few hours gets even worse!!! Today I checked the battery, when the car is off the battery shows 12.8V, when turned on, it show a steady 14.6... but when I accelerate the car it goes all the way up to 19+ volts!
Oh also... the first symptom was my Parrot Asteroid radio wasn't working... and now when the ASR/BAS ABS lights come up, the radio stops working and the windows won't go up/down....
Sounds like alternator or regulator? Any experience with this? Is it normal that a measuring the voltage on the battery when the car accelerates go up to 20V?
Almost forgot to mention: Today it also gave me a "Large Fuel Leak" Code, and the fuel light started blinking when the tank showed (And I'm positive about that) over 3/4 of a tank. A friend said that when a system voltage malfunction is present, the ECU might get a bit "crazy"....