P0335 on Opel: How to Diagnose & Fix
Crankshaft Position Sensor A Circuit Malfunction
2 Opel models · 2 documented issues · 2 critical · $700-$4,500 repair
P0335 on Opel by model: symptoms, diagnosis and fix
The 1.7 CDTI water pump is timing-belt-driven in this engine. When the pump seizes or its impeller fails, the timing belt can be ejected — leading to valve damage. Failure typically appears between 80,000-130,000 km, often before the recommended belt service.
Common Symptoms
- coolant weep
- belt area noise
- sudden engine stall
- no compression after pump seize
How to Fix
Replace water pump WITH timing belt as a kit (€700-€1,100) rather than belt alone. Catastrophic pump failure with belt jump means head rebuild (€2,500+). Do the kit early if there's any whining or weeping from the pump.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- DAYCO KTBWP5310 water-pump and timing-belt kit
Confirm VIN/chassis before purchase.
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The Renault-sourced R9M 1.6 BiTurbo CDTI used in Vivaro B (and Trafic III, Movano B) develops timing chain stretch, typically 100,000-180,000 km. Cold-start rattle, misfire codes, then potential chain skip causing valve damage. Particularly bad on stop-start fleet use without regular oil changes.
Common Symptoms
- cold start rattle
- misfire
- loss of power
- engine warning
How to Fix
Full chain kit (€1,200-€1,800) including chain, guides, tensioners, sprockets — full job often involves engine drop in vans due to tight clearance. Use C4-spec low-SAPS 5W-30 oil and shorten intervals to 15,000 km max for fleet/stop-start duty.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- R9M Vivaro B full engine timing-chain kit
Confirm VIN, engine suffix, power output and kit contents/OE numbers.
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
P0335 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0335 mean on a Opel?
P0335 stands for "Crankshaft Position Sensor A Circuit Malfunction." This code means the engine computer has lost or detected a faulty signal from the crankshaft position sensor (sensor A), which tells the computer exactly how fast and in what position the crankshaft is rotating. That signal is essential for timing the spark and fuel injection, so a problem here can cause hard starting, stalling, or a no-start condition. The computer sets this code when the crank sensor signal is missing, erratic, or out of its expected pattern. Causes range from a failed sensor or damaged wiring to a problem with the reluctor (tone) ring the sensor reads. On Opel it is documented across 2 models: Mokka, Vivaro.
What are the most common causes of P0335?
The most common causes of P0335 are: Failed crankshaft position sensor, Damaged, corroded, or loose sensor wiring/connector, Metal debris or oil contamination on the sensor tip, Damaged or misaligned reluctor (tone) ring, Excessive air gap between sensor and tone ring, Wiring shorted or open in the sensor circuit, Faulty PCM/ECM (rare). The specific cause varies by vehicle.
How much does it cost to fix P0335 on a Opel?
Published repair estimates on Opel range from $700 to $4,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0335 on a different make?
View P0335 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.