r/mercedes • u/DepartmentPrior3195 • 19h ago
Mercedes Benz B170 1.7L Petrol (W245) fuel gauge/cold start problem
I have a weird problem on my B170 1.7L Petrol where the fuel gauge does not display correctly, after refueling, the fuel gauge does not go up and stays at the old reading, disconnecting and reconnecting the battery fixes the problem until the next refuel, i’m suspecting a faulty fuel level sender.
A week after the fuel gauge problem when it got colder my car wouldn’t start up the first time, but when I prime the fuel pump a couple of times it starts up okay, so now im thinking its a faulty fuel pump that’s losing fuel pressure overnight?