Citroën P0016

Crank/cam correlation Bank 1 on Citroën — 1.6 THP/VTi Prince engine timing chain stretch (DS3, C3, C4 Picasso).

Citroën P0016 — Crank/cam correlation Bank 1 on Citroën — 1.6 THP/VTi Prince engine timing chain stretch (DS3, C3, C4 Picasso). Typical UK independent garage cost: £600–£2400.

What actually causes P0016 on a Citroën

Same Prince engine story as Peugeot — primary chain stretches from 80k, P0016 logged with cold-start rattle. The recommended fix is a full kit including the updated tensioner. Many DS3s and C4 Picassos have already had this work — check service history before quoting.

Citroën engines that log P0016

• 1.6 THP EP6 (DS3, DS4, C4)
• 1.6 VTi EP6C (C3, C4 Picasso)

How we diagnose P0016 on a Citroën

1. Cold-start rattle test from front of engine
2. Remove and clean VVT solenoid screens
3. Live cam/crank correlation read
4. Inspect timing chain via cam cover
5. Full timing kit replacement if stretch confirmed

The common misdiagnosis to avoid

Skip the VVT solenoid clean and you'll fit a full timing kit only to log P0016 again because the screens were the actual cause.

Citroën P0016 repair cost in the UK

Expect £600–£2400 including parts and labour at an independent garage. Main-dealer quotes on Citroën are usually higher for the same job, and the spread exists because the cheap cause and the expensive cause throw the same code — pay for the diagnosis before you pay for parts.

Bob's workshop tip

DS3 1.6 THP P0016 within Citroën's extended powertrain goodwill window is worth a dealer enquiry — they occasionally contribute.

Codes usually seen alongside P0016 on Citroën

• P0017
• P0011
• P0341

Symptoms drivers report with P0016

• Loud metallic rattle for the first 2–4 seconds of a cold start — the classic 'death rattle'
• Long cranking before the engine catches, especially after standing overnight
• Rough lumpy idle at traffic lights, occasionally stalls
• Stop/Start stops working (ECU disables it once cam correlation drifts)
• Turbo feels lazy or flat below 2,000 RPM — timing is retarded to protect the valvetrain
• MPG drops 4–8 mpg with no other obvious cause
• Code P0011, P0014, P0017 or P0341 stored alongside P0016

Repairs that clear P0016

• Measure cam-to-crank deviation with manufacturer-aware scan tool
• Plan full timing chain kit if stretched
• Replace cam phaser if mechanically faulty

For the generic, all-makes explanation of this code — meaning, every known cause and UK cost bands — see our P0016 guide.