Hi guys,

I have a chance to buy a 1996 s500 that does not start. Seller states that he gave someone a jump start and another guy swapped positive and negative leads on the battery. Seller says that when leads were connected his car stalled and now cannot start.

What can be damaged when something like this happen?

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1999 ML430 Silver 135k ml
Smoked LED taillights, Alpine in-dash DVD player, 12" sub, Pioneer components, 2 amps, 4200k HIDs, ML55 headlights, 20" rims, mirror LED blinkers

SOLD. 1996 E320 145k ml. Burgundy

SOLD but miss it everyday 1992 500sel Black
Chime buzzer mod,Alpine CD/MP3 player with stock amp,Euro headlights,S600 grill,20" rims, BEST CAR EVER!

SOLD. 1990 300E White
187k ml,smoked tails,Euro headlights,17rims,Intake,12" sub in first aid kit,alarm/autostart,buzzer mod

I'm sure there is a fuse somewhere, battery probably blew.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

Probably the car has a main fusible link, that is there for just such an occasion and which blew. Find it and replace it.

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1991 560 SEC AMG, 199k <---- 300 hp 10:1 ECE euro HV ...

1995 E 420, 170k "The Red Plum" (sold)

2015 BMW 535i xdrive awd Stage 1 DINAN, 6k, <----364 hp

1967 Mercury Cougar, 49k

2013 Jaguar XF, 20k <----340 hp Supercharged, All Wheel Drive (sold)

There is an overload protection "fuse" in these cars.....in the fuse box.
Essentially protects electronics from stupidity.

Take a look in the module box under the hood on the passengers' side. The Base Module is responsible for over-voltage protection. It's basically a glorified OVP among other things. It has five fuses. Check these first.

Thanks for help guys Unfortunately the seller does not return my phone calls. Maybe he fixed it or sold it. Anyway thanks for your help.

__________________
1999 ML430 Silver 135k ml
Smoked LED taillights, Alpine in-dash DVD player, 12" sub, Pioneer components, 2 amps, 4200k HIDs, ML55 headlights, 20" rims, mirror LED blinkers

SOLD. 1996 E320 145k ml. Burgundy

SOLD but miss it everyday 1992 500sel Black
Chime buzzer mod,Alpine CD/MP3 player with stock amp,Euro headlights,S600 grill,20" rims, BEST CAR EVER!

SOLD. 1990 300E White
187k ml,smoked tails,Euro headlights,17rims,Intake,12" sub in first aid kit,alarm/autostart,buzzer mod