Error and no heating

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Old Apr 4, 2026 | 04:13 AM
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Error and no heating

EQB 350 4MATIC -24, 20000 km

The car all of a sudden gave an error during driving, ”drive to closest workshop without changing mode”, and the heating inside the car stopped working. I was almost home so I just went home, put it in park and turned it off. It then said it must be towed.

I let it be for the night, when I tried the next morning everything worked. After a couple of days the same cycle started again but now the error message disappears before I can turn off the car, and I can just start it again without problem and drive. But there’s no heating inside the car anymore. Sometimes the fan is blowing even though I turn the car off so something’s strange.

There’s an inactive code via OBD, P1547(00) [0x154700] Boost Pressure Contr. Valve Short to Ground.

The workshop doesn’t have time until 5 weeks… anyone had this issue, what was the problem?
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Old May 3, 2026 | 09:08 PM
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From: Phoenix
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Originally Posted by brah
EQB 350 4MATIC -24, 20000 km

The car all of a sudden gave an error during driving, ”drive to closest workshop without changing mode”, and the heating inside the car stopped working. I was almost home so I just went home, put it in park and turned it off. It then said it must be towed.

I let it be for the night, when I tried the next morning everything worked. After a couple of days the same cycle started again but now the error message disappears before I can turn off the car, and I can just start it again without problem and drive. But there’s no heating inside the car anymore. Sometimes the fan is blowing even though I turn the car off so something’s strange.

There’s an inactive code via OBD, P1547(00) [0x154700] Boost Pressure Contr. Valve Short to Ground.

The workshop doesn’t have time until 5 weeks… anyone had this issue, what was the problem?
OP the car is under warranty. Get the dealer to give you a car to drive while you wait for it to get handled. It will take the time it takes.
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