The 1.6 dCi engine fitted to the Renault Trafic, Vauxhall Vivaro, Nissan NV300 and Fiat Talento has a well-known timing chain weakness. It is the timing chain job we carry out most often on light commercial vehicles. If your van rattles on cold start, has thrown a P0016 fault, or has lost power without warning, this guide explains what is happening and what the repair involves.
Quick Answer
Contents
Which Vans Are Affected?
The first four vans below are the same vehicle underneath, built on the same platform with the same Renault-designed 1.6-litre diesel engine. Vauxhall badges it CDTi, Renault and Nissan badge it dCi, Fiat badges it MultiJet — it is the same R9M unit and it has the same timing chain problem in every one of them.
| Van | Years | Badging |
|---|---|---|
| Renault Trafic III | 2014 on | 1.6 dCi |
| Vauxhall / Opel Vivaro B (X82) | 2014–2019 | 1.6 CDTi |
| Nissan NV300 | 2016 on | 1.6 dCi |
| Fiat Talento | 2016 on | 1.6 MultiJet |
| Mercedes Vito / Marco Polo | 2014 on | 1.6 CDI |
Engine codes you may see on the block or on an invoice include R9M 408, R9M 413, R9M 450 and R9M 452. These are output and emissions variants of the same design — single-turbo versions around 95bhp and 120bhp, and twin-turbo versions above that. The chain arrangement is common to all of them.
The same engine is also in a lot of cars
The R9M was fitted across the Renault-Nissan range as well as the vans: Nissan Qashqai and X-Trail, Renault Megane, Scenic, Grand Scenic, Kadjar, Koleos, Espace, Fluence and Talisman, and — in Mercedes’ own OM626 form — the C-Class. The full application list is set out in the aftermarket FAI Automotive technical bulletin for the R9M engine. If yours is a car, our Nissan Qashqai 1.6 dCi timing chain guide covers the same fault from the car owner’s side.
Symptoms on a Working Van
Vans hide this fault for longer than cars do, because a diesel van is expected to be noisy and because the driver is usually thinking about the next job rather than the engine. The symptoms below appear in roughly this order.
Metallic rattle for the first few seconds from cold
The most reliable early sign. A distinct chain slap or tapping when the engine fires from cold, fading after five to fifteen seconds as oil pressure builds and the tensioner takes up the slack. On a van that sits overnight and starts cold every morning, you will hear it every day. It is not normal diesel clatter, and it does not get better on its own.
Rattle that no longer goes away when warm
Once the chain has stretched far enough that the tensioner has run out of adjustment, the noise stays after warm-up and is often worse at idle with the van loaded. This is the point at which the job stops being routine.
Engine management light and a stored correlation fault
The ECU compares crankshaft and camshaft position. When chain stretch shifts cam timing outside tolerance, it logs the fault and lights the dash.
Rough idle, hesitation and lost power under load
Cam timing drift upsets injection timing and EGR control. On a van this shows up as hesitation pulling away loaded, a flat spot on a hill, or an intermittent limp mode that clears on a restart. Drivers often blame fuel or the DPF first.
Rising oil consumption or an overdue service history
Not a symptom of the chain itself, but the strongest predictor of it. See the causes section below.
Fault Codes You Will See
- P0016 — crankshaft / camshaft position correlation, bank 1 sensor A. The classic chain stretch code on this engine.
- P0017 — the same correlation fault reported against the exhaust cam.
- P0011 / P0014 — camshaft position timing over-advanced or retarded.
Why the Chain Fails on These Vans
The tensioner depends on oil pressure it does not have at start-up
The R9M uses a hydraulic tensioner. On a cold start there is a short window before oil pressure reaches it, and during that window the chain is slack. Every cold start costs a little chain life. A van doing multiple short cold starts a day accumulates that wear far faster than a car doing one commute.
Plastic guides that crack with age and heat
The guides that hold the chain on its path are a nylon-based plastic. They become brittle with mileage and heat cycling, crack, and stop controlling the chain — which accelerates stretch and can leave debris in the sump.
Extended service intervals and the wrong oil
This is the factor most within an operator’s control. Degraded or incorrect-grade oil slows the tensioner, and a van on a long-life interval doing stop-start urban work is being serviced on a schedule designed for motorway mileage. Check the specification in your service book and shorten the interval if the van does town work.
Load, and the fact that vans work harder
A loaded van spends far more of its life at high torque and high oil temperature than the same engine in a Qashqai. The chain sees the consequences.
What Happens If You Keep Driving
A stretched chain that is left long enough will eventually jump a tooth on the sprocket. On this engine that means valve-to-piston contact, and the outcome is bent valves, damaged pistons and in the worst cases a scrapped cylinder head. That converts a chain, guide and tensioner job into an engine rebuild or a replacement engine — and takes the van off the road for far longer.
The commercial argument is simple. A chain replacement is a planned day off the road that you can book around your work. A jumped chain is an unplanned recovery, an unknown bill and a van standing for weeks.
The Repair and What Is Involved
The R9M’s chain sits at the gearbox end of the engine rather than at the front, which is what makes this a bigger job than a conventional front-mounted chain. Access requires substantial dismantling, so the labour content is high even though the parts themselves are not exotic.
At Star Garage Mansfield we do this job regularly on Trafics and Vivaros — it is the timing chain work we see most. Our approach is:
- Diagnose before quoting. Fault codes are read, live cam/crank correlation data is checked, and the noise is confirmed as chain rather than injector, tappet or ancillary.
- Replace the full kit, not just the tensioner. A stretched chain with a new tensioner is a repair that comes back. Chain, guides, tensioner and sprockets go together.
- Inspect what the chain has been living in. Guide debris in the sump and oilway condition tell you whether anything else needs attention.
- Confirm timing after the rebuild and road test under load before the van goes back to you.
Turnaround is typically a full day in the workshop. Cost depends on which variant you have and on what the strip-down finds, so it is quoted on inspection rather than off a price list. See our timing chain and belt service page for how we work.
Trafic or Vivaro Rattling on Cold Start?
Get it looked at before the chain jumps. A diagnostic at Star Garage Mansfield tells you exactly what condition the chain is in and whether the van can safely keep working while you plan the repair around your jobs.
Call 01623 904724 — Star Garage Mansfield, 2 Warsop Road, NG19 9LF
Frequently Asked Questions
Does the Renault Trafic have a timing chain or a timing belt?
The 1.6 dCi Trafic III has a timing chain. It is not a scheduled replacement item in the service schedule, which is part of why the fault catches operators out — there is no mileage on the plan telling you to change it.
Is the Vauxhall Vivaro 1.6 CDTi the same engine as the Astra 1.6 CDTi?
No. The Vivaro B uses the Renault R9M. The Astra, Insignia, Zafira and Mokka 1.6 CDTi use Vauxhall’s own engine. Both have timing chain issues, but the design, the failure mode and the repair are different.
Can I keep working the van with a cold start rattle?
Short local journeys only, and only until you can get it booked in. Avoid long motorway runs and heavy loads. Every cold start and every high-load pull increases the risk of the chain jumping.
How long does a Trafic or Vivaro timing chain replacement take?
Typically a full day. The chain is at the gearbox end of the engine, so access is far more involved than on a front-mounted chain. We will confirm the expected turnaround once the van has been diagnosed.
Should I replace just the tensioner to save money?
We do not recommend it. By the time the tensioner is at fault the chain has almost always stretched, and a new tensioner on a stretched chain simply defers the failure. The full kit is the repair that lasts.
Does the Nissan NV300 or Fiat Talento have the same problem?
Yes. The NV300 and Talento are the same van as the Trafic and Vivaro with different badges, using the same R9M engine and the same chain arrangement.
Need this looked at?
Describe the symptom and we’ll tell you whether it needs a diagnostic slot or a straight booking.
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