P0341 on Mercedes-Benz
Camshaft Position Sensor Circuit Range/Performance (Bank 1)
P0341 on Mercedes-Benz vehicles indicates camshaft position sensor circuit range/performance (bank 1). Au7o has documented this code across 1 Mercedes-Benz model — most commonly on GLA. This code means the camshaft position sensor on Bank 1 is sending a signal that is present but doesn't make sense to the engine computer (a range/performance fault), often because it disagrees with the crankshaft position signal. The cam sensor tells the computer where the camshaft is so it can correctly time fuel injection and spark, and on engines with variable valve timing it also confirms cam phaser movement. When the signal is out of range, intermittent, or doesn't correlate properly, the computer flags this code, and you may notice hard starting, rough running, or reduced power. Causes are commonly a worn sensor, a stretched timing chain, or a problem with the cam phaser/tone ring. Typical repair costs on Mercedes-Benz range from $1,200 to $3,000, depending on the specific model and root cause.
Common Causes of P0341
- •Failed or weak camshaft position sensor
- •Damaged or corroded sensor wiring/connector
- •Stretched or worn timing chain causing cam timing drift
- •Faulty variable valve timing (VVT) cam phaser or solenoid
- •Damaged camshaft reluctor (tone) ring
- •Low or dirty engine oil affecting VVT operation
- •Incorrect sensor air gap or installation
- •Faulty PCM/ECM (rare)
P0341 on Mercedes-Benz by Model
Mercedes-Benz GLA(1 issue)
- M270/M274 Timing Chain Stretch & Tensioner Wear (Cold-Start Rattle)2015-2020
The GLA's M270/M274 turbo four-cylinder petrol engines are widely documented to suffer timing chain elongation and tensioner/guide wear, usually presenting between roughly 40,000-80,000 mi. A loose chain produces a distinctive rattle for the first few seconds after a cold start until oil pressure loads the tensioner. A related defect is the camshaft tone/reluctor ring slipping, throwing timing-correlation faults. Left unaddressed, a stretched chain can jump time and cause valve-to-piston contact and major engine damage.
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View P0341 across all makes →Frequently Asked Questions
What does P0341 mean on Mercedes-Benz?▼
P0341 stands for "Camshaft Position Sensor Circuit Range/Performance (Bank 1)." This code means the camshaft position sensor on Bank 1 is sending a signal that is present but doesn't make sense to the engine computer (a range/performance fault), often because it disagrees with the crankshaft position signal. The cam sensor tells the computer where the camshaft is so it can correctly time fuel injection and spark, and on engines with variable valve timing it also confirms cam phaser movement. When the signal is out of range, intermittent, or doesn't correlate properly, the computer flags this code, and you may notice hard starting, rough running, or reduced power. Causes are commonly a worn sensor, a stretched timing chain, or a problem with the cam phaser/tone ring. On Mercedes-Benz specifically, this code is documented across 1 model.
What causes P0341 on Mercedes-Benz vehicles?▼
Common causes on Mercedes-Benz: Failed or weak camshaft position sensor, Damaged or corroded sensor wiring/connector, Stretched or worn timing chain causing cam timing drift, Faulty variable valve timing (VVT) cam phaser or solenoid, Damaged camshaft reluctor (tone) ring. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0341 on a Mercedes-Benz?▼
Repair costs on Mercedes-Benz range from $1,200 to $3,000, depending on the specific model and root cause.
Which Mercedes-Benz models have P0341 documented?▼
Au7o has documented P0341 on 1 Mercedes-Benz model: GLA.