P0017 on SEAT
Crankshaft/Camshaft Position Correlation - Bank 1 Sensor B
P0017 on SEAT vehicles indicates crankshaft/camshaft position correlation - bank 1 sensor b. Au7o has documented this code across 2 SEAT models — most commonly on Ibiza, Leon. This code means the engine computer has detected that the crankshaft and the Bank 1 'B' camshaft (typically the exhaust camshaft) are out of their proper timing relationship with each other. The computer compares the crankshaft position signal to the camshaft position signal, and when they don't line up within the allowed window, it sets this correlation code. This usually points to mechanical timing being off, most often from a stretched or worn timing chain, a slipped or stuck variable valve timing phaser, or a tensioner problem. You may notice rough running, low power, rattling at startup, or a no-start, and it should be addressed promptly to avoid valve-to-piston contact on some engines. Typical repair costs on SEAT range from $200 to $3,000, depending on the specific model and root cause.
Common Causes of P0017
- •Stretched or worn timing chain
- •Worn or failed timing chain tensioner or guides
- •Stuck or faulty variable valve timing (VVT) cam phaser
- •Faulty VVT oil control/solenoid valve
- •Low or dirty engine oil affecting phaser operation
- •Faulty camshaft or crankshaft position sensor
- •Timing chain jumped a tooth or incorrect timing after service
- •Damaged reluctor (tone) ring
P0017 on SEAT by Model
SEAT Ibiza(2 issues)
- Ibiza 1.2 TSI (EA111) Timing Chain Stretch2010-2015
The EA111 1.2 TSI in Ibiza Mk4 (and Polo, Fabia, Audi A1) suffers timing chain stretch with the original tensioner design. Symptoms appear from 60,000-100,000 km: cold-start rattle, P0016/P0017 cam-crank correlation codes, eventual chain skip causing valve-piston contact. VW Group issued tensioner updates but the underlying chain wear remains. The newer EA211 1.2 TSI replaced this from ~2014 with belt drive — does NOT have the issue.
- 1.2 TSI (EA111) Timing Chain Stretch and Tensioner Failure2010-2014
The 1.2 TSI petrol engine (EA111, CBZ-series) fitted to the Mk4/Mk5 Ibiza is widely documented for premature timing-chain stretch and tensioner wear, often between 40,000-60,000 miles (some failures reported as early as 27,500 miles even with full service history). The thin early-design chain and weak hydraulic tensioner allow the chain to lose tension; under load or at cold start the chain can jump a tooth on the crank gear, altering valve timing. Because it is an interference engine, a jumped chain can bend valves and destroy the engine. Owners report metallic rattle on cold start as the first warning sign, frequently alongside elevated oil consumption. Engines built from roughly 2013 onward received an upgraded reinforced chain and an anti-jump chain cover.
SEAT Leon(2 issues)
- Leon Mk2 1.4 TSI Twincharger Timing Chain + Supercharger2007-2012
The CAVD 1.4 TSI Twincharger (supercharger + turbo) in Leon Mk2 / Golf Mk6 / Scirocco / Touran is double-trouble: the EA111 timing-chain stretch issue AND supercharger magnetic-clutch failure. Combined repair if both fail is among the most expensive on the platform.
- 1.2/1.4 TSI (EA111) Timing Chain Stretch and Tensioner Failure2008-2014
Early petrol Leons fitted with the EA111-family 1.2 and 1.4 TSI engines (CBZ/CAVx/CTHx etc.) are well documented for premature timing chain stretch and tensioner failure. The chain tensioner can lose pressure and let the chain go slack, causing a loud rattle on cold start and, in worst cases, the chain skipping teeth and causing valve-to-piston contact. Failures are widely reported well before 60,000 miles (often 30k-60k). This affects Mk2 (1P) and very early Mk3 (5F) cars before VW moved to the revised EA211 chain/belt setup.
Looking for P0017 on a different make?
View P0017 across all makes →Frequently Asked Questions
What does P0017 mean on SEAT?▼
P0017 stands for "Crankshaft/Camshaft Position Correlation - Bank 1 Sensor B." This code means the engine computer has detected that the crankshaft and the Bank 1 'B' camshaft (typically the exhaust camshaft) are out of their proper timing relationship with each other. The computer compares the crankshaft position signal to the camshaft position signal, and when they don't line up within the allowed window, it sets this correlation code. This usually points to mechanical timing being off, most often from a stretched or worn timing chain, a slipped or stuck variable valve timing phaser, or a tensioner problem. You may notice rough running, low power, rattling at startup, or a no-start, and it should be addressed promptly to avoid valve-to-piston contact on some engines. On SEAT specifically, this code is documented across 2 models.
What causes P0017 on SEAT vehicles?▼
Common causes on SEAT: Stretched or worn timing chain, Worn or failed timing chain tensioner or guides, Stuck or faulty variable valve timing (VVT) cam phaser, Faulty VVT oil control/solenoid valve, Low or dirty engine oil affecting phaser operation. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0017 on a SEAT?▼
Repair costs on SEAT range from $200 to $3,000, depending on the specific model and root cause.
Which SEAT models have P0017 documented?▼
Au7o has documented P0017 on 2 SEAT models: Ibiza, Leon.