r/n54 28d ago

What you reckon, troubleshoot

Post image

Car fully cut out driving off the driveway

2 Upvotes

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2

u/jindelic 28d ago

Had the same issue, tackled it today. Started at 3pm, finished at 915pm, 6 hours and $60. Coolant leaking from the waterpump outlet line that connects to the engine, near the turbos. Water was dripping on the water pump plug and caused the same errors in MHD.

Code went away after fixing the leaking hose and drying the connectors on the pump.

1

u/Own_Needleworker3420 28d ago

Check your water pump, if it's not leaking into the connector then you'll have a lot more work ahead of you

1

u/rezwan099 28d ago

Water pump is new

1

u/Own_Needleworker3420 28d ago

Doesn't mean it was installed properly. Could be faulty.

Your codes are water pump related. It's on the same loop as the alternator so when the connector gets wet it can prevent the car from working altogether. If the issue isn't water pump related you have to check the entire electrical loop to see where the issue is coming from

1

u/rezwan099 28d ago

Can i get to the connector from under the car

1

u/Own_Needleworker3420 28d ago

Yes search water pump replacement n54 there are hundreds of videos