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PSE Pump

Is an S202 a W202?

If it is look in the sidewall of the boot.
 
Managed to access the boot and get the pse pump out. Couldn't see any corrosion within and the foam was bone dry so no chance of water or condensation ingress.
Swapped the pump over with another known good pump albeit, one from a petrol model and not made a difference (the part number was slightly different but connections were the same). Now back on its original. One thing I did notice was that the heated rear screen,rear wiper and washer,front wash/wipe and indicators do not work although hazards do. Engine starts and runs. Confusing me:confused: Any further ideas please.
 

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