P0035 on MINI
Turbocharger/Supercharger Bypass Valve Control Circuit High
P0035 on MINI vehicles indicates turbocharger/supercharger bypass valve control circuit high. Au7o has documented this code across 1 MINI model — most commonly on GP. P0035 is a generic powertrain code indicating the engine computer detected a high-voltage (or open) condition in the turbocharger or supercharger bypass (boost-control) valve control circuit. This valve regulates boost; a high reading means the computer cannot properly command or verify the circuit. The driver may notice reduced power, a check engine light, or a reduced-boost limp mode. Diagnosis is needed to restore correct boost control and avoid driveability issues. Typical repair costs on MINI range from $60 to $450, depending on the specific model and root cause.
Common Causes of P0035
- •Faulty turbo/supercharger bypass (boost-control) valve or solenoid
- •Open or high-resistance wiring in the control circuit
- •Corroded/loose connector at the valve
- •Short to voltage in the harness
- •Failed PCM/ECM driver circuit
- •Related boost-control system fault
P0035 on MINI by Model
MINI GP(1 issue)
- Intercooler Boost Pipe Blowoff / Silicone Coupler Failure (N14/N18/B48)2013-2023
The factory intercooler-to-throttle body boost pipes on the GP2 and GP3 use silicone couplers secured by worm-drive clamps that are prone to cracking, splitting, or blowing off under sustained high-boost track use. The N18 and B48 engines in GP specification run elevated boost pressure compared to standard Cooper S variants, accelerating coupler fatigue. Owners report a sudden loss of power accompanied by a loud 'pop' or hiss from the engine bay as boost pressure escapes.
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View P0035 across all makes →Frequently Asked Questions
What does P0035 mean on MINI?▼
P0035 stands for "Turbocharger/Supercharger Bypass Valve Control Circuit High." P0035 is a generic powertrain code indicating the engine computer detected a high-voltage (or open) condition in the turbocharger or supercharger bypass (boost-control) valve control circuit. This valve regulates boost; a high reading means the computer cannot properly command or verify the circuit. The driver may notice reduced power, a check engine light, or a reduced-boost limp mode. Diagnosis is needed to restore correct boost control and avoid driveability issues. On MINI specifically, this code is documented across 1 model.
What causes P0035 on MINI vehicles?▼
Common causes on MINI: Faulty turbo/supercharger bypass (boost-control) valve or solenoid, Open or high-resistance wiring in the control circuit, Corroded/loose connector at the valve, Short to voltage in the harness, Failed PCM/ECM driver circuit. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0035 on a MINI?▼
Repair costs on MINI range from $60 to $450, depending on the specific model and root cause.
Which MINI models have P0035 documented?▼
Au7o has documented P0035 on 1 MINI model: GP.