Inspect k40 relay board and replace it if the soldered joints at top right of board are defective or resolder them.
Please see: Link
Mercedes Benz SLK 230's engine will start cutting out at rpm's above 4k if the car is in park. This is a self preservation safety feature.
here to buy rebuild engines and transmission for mercedes-benz slk 230-class?
Where to buy rebuild engines and transmission for1997 mercedes-benz slk 230-class
how do you replace the drive belts on an 1974 mercedes 230
12V 72Ah
You can get one on eBay for $3.99
high test
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en tu chingada madre
This is very helpful
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Assuming E230 is what is written on the vehicle? It indicates that its an "E" class mercedes, and the 230 indicates its a 2.3 litre engine.