P0012 on MINI
Intake Camshaft Position Timing - Over-Retarded (Bank 1)
P0012 on MINI vehicles indicates intake camshaft position timing - over-retarded (bank 1). Au7o has documented this code across 4 MINI models — most commonly on Cooper, Cooper S, Coupe. This code means the intake camshaft timing on Bank 1 is more retarded than the computer commanded — the variable valve timing system isn't reaching its target position. The computer controls camshaft timing through an oil-fed actuator (cam phaser) and a control solenoid; when actual timing lags the desired setting, this code sets. It is commonly caused by oil flow problems (low, dirty, or wrong oil), a stuck solenoid, or a worn cam phaser. Symptoms can include rough idle, reduced power, poor fuel economy, and sometimes rattling on startup. Typical repair costs on MINI range from $200 to $3,000, depending on the specific model and root cause.
Common Causes of P0012
- •Low, dirty, or incorrect-viscosity engine oil
- •Faulty or stuck intake camshaft (VVT) oil control solenoid
- •Worn or stuck camshaft phaser/actuator
- •Clogged solenoid screen or oil passages
- •Wiring or connector problems at the solenoid
- •Timing chain wear or stretch affecting cam timing
- •Faulty camshaft position sensor
P0012 on MINI by Model
MINI Cooper(2 issues)
- N12/N16 Timing Chain Tensioner Failure2007-2013
The R56 Cooper's N12 and N16 engines suffer from premature timing chain tensioner and guide rail failure. The plastic chain guides deteriorate, causing chain slack that leads to rough running, rattling on startup, and potential catastrophic engine damage if the chain jumps timing.
- Valve Cover and VANOS Solenoid Oil Leaks2007-2016
The valve cover gasket on N12/N16/N18 engines hardens and leaks oil onto the exhaust manifold, creating a burning oil smell. VANOS solenoid seals also leak, causing oil to pool around the solenoids and potentially cause misfires.
MINI Cooper S(1 issue)
- N14/N18 Turbo Engine Timing Chain Catastrophic Failure2007-2013
The R56 Cooper S N14 engine (2007-2010) is particularly notorious for timing chain tensioner failure, even more so than the naturally aspirated N12. The higher cylinder pressures from turbocharging accelerate chain stretch and guide rail wear. The revised N18 (2011-2013) improved but didn't fully resolve the issue.
MINI Coupe(1 issue)
- N14/N18 Timing Chain Tensioner Failure2012-2015
Same timing chain issue as the Cooper S. The N14 and N18 turbo engines develop timing chain stretch and tensioner failure.
MINI GP(1 issue)
- VANOS Solenoid Issues (N18/B48 Engines)2013-2023
The VANOS (variable valve timing) solenoids on both the N18 engine (GP2, 2013-2015) and B48 engine (GP3, 2020-2023) are susceptible to failure from oil contamination and varnish buildup. When the solenoids stick or fail, the ECU cannot properly control cam timing, resulting in rough idle, poor throttle response, and reduced performance. The high-output tuning of the GP engines makes them less tolerant of degraded VANOS performance compared to standard MINI models.
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View P0012 across all makes →Frequently Asked Questions
What does P0012 mean on MINI?▼
P0012 stands for "Intake Camshaft Position Timing - Over-Retarded (Bank 1)." This code means the intake camshaft timing on Bank 1 is more retarded than the computer commanded — the variable valve timing system isn't reaching its target position. The computer controls camshaft timing through an oil-fed actuator (cam phaser) and a control solenoid; when actual timing lags the desired setting, this code sets. It is commonly caused by oil flow problems (low, dirty, or wrong oil), a stuck solenoid, or a worn cam phaser. Symptoms can include rough idle, reduced power, poor fuel economy, and sometimes rattling on startup. On MINI specifically, this code is documented across 4 models.
What causes P0012 on MINI vehicles?▼
Common causes on MINI: Low, dirty, or incorrect-viscosity engine oil, Faulty or stuck intake camshaft (VVT) oil control solenoid, Worn or stuck camshaft phaser/actuator, Clogged solenoid screen or oil passages, Wiring or connector problems at the solenoid. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0012 on a MINI?▼
Repair costs on MINI range from $200 to $3,000, depending on the specific model and root cause.
Which MINI models have P0012 documented?▼
Au7o has documented P0012 on 4 MINI models: Cooper, Cooper S, Coupe, GP.