The DV5 1.5 diesel engine, used across Ford, Peugeot, Citroën and DS vehicles, is a modern and efficient engine found in many popular cars and vans. While it delivers good fuel economy and low emissions, it has developed a well-known weakness that owners and garages are increasingly aware of: the 7mm timing chain.
At Approved Engines, we regularly see DV5 engines affected by timing chain problems. This article explains the DV5 7mm timing chain issue, why it can fail, and how our 8mm timing chain upgrade is designed to improve long-term reliability.
What Is the DV5 Engine?
The DV5 is a 1.5-litre diesel engine used widely across several manufacturers, including:
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Ford, including EcoBlue variants
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Peugeot
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Citroën
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DS Automobiles
It is commonly found in vehicles such as:
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Ford Transit Connect and Transit Courier
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Peugeot Partner and Expert
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Citroën Berlingo and Dispatch
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Various passenger cars using the BlueHDi system
While efficient and refined, certain DV5 applications use a timing chain arrangement that has become a significant reliability concern.
The DV5 7mm Timing Chain Problem
The original DV5 engine was fitted with a 7mm timing chain. In real-world use, this chain can be susceptible to premature wear and stretching.
Potential problems include:
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Premature timing chain stretch
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Accelerated chain wear
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Incorrect engine timing
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Rattling noises, particularly during cold starts
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Engine management faults
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Major internal engine damage if the chain fails
Early warning signs can sometimes be difficult to identify. By the time the symptoms become obvious, additional engine damage may already have occurred.
Timing chain problems can also occur on vehicles that have:
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A full service history
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Been maintained using the correct oil specification
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Covered mileage considered normal for their age
Why Does the DV5 7mm Timing Chain Fail?
The original 7mm chain can struggle with the demands placed on it in some DV5 applications.
Several operating factors may contribute to accelerated wear, including:
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High torque at low RPM
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Emissions-focused engine calibration
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Extended service intervals
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Frequent stop-start driving
As wear develops, the timing chain can stretch beyond its intended tolerance. This can affect camshaft timing and ultimately compromise engine reliability.
Our Solution: The DV5 8mm Timing Chain Upgrade
At Approved Engines, we don't simply replace a failed DV5 engine like-for-like where an improved solution is available.
Where applicable, we upgrade the engine using an improved 8mm timing chain solution.
Benefits of the 8mm Timing Chain Upgrade
The upgrade provides:
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Increased chain width for greater strength
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Improved resistance to stretching
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Better long-term timing stability
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Reduced risk of the same timing chain problem recurring
The aim is to address the known weakness rather than simply replacing failed components with the same specification.
Why the 8mm Upgrade Matters When Replacing a DV5 Engine
If a replacement DV5 engine retains the original 7mm timing chain arrangement, there is a risk of encountering similar timing chain problems in the future.
Upgrading to an 8mm timing chain can help:
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Improve long-term engine reliability
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Reduce the likelihood of future timing-related problems
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Protect your investment in a replacement engine
This can be particularly important for:
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Commercial vehicles
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High-mileage drivers
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Fleet operators
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Trade customers
For vehicles relied upon for work, reducing the risk of repeat engine problems can also help minimise future downtime.
DV5 Engines Supplied by Approved Engines
Our DV5 replacement engines are carefully inspected and prepared, with upgrades carried out where appropriate for the specific engine variant.
DV5 engines supplied by Approved Engines are:
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Built to OEM specification
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Carefully inspected and prepared
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Upgraded where appropriate with the improved timing chain solution
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Supplied with a warranty for additional peace of mind
We also carry out VIN confirmation to ensure the correct DV5 engine variant is supplied for your vehicle.
Signs of a DV5 Timing Chain Problem
If your vehicle has a DV5 engine, look out for symptoms including:
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Rattling or unusual engine noises
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Rattling during cold starts
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Timing-related fault codes
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Loss of engine performance
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Engine warning lights
These symptoms should not be ignored. Identifying a timing chain problem early may help prevent more extensive and costly internal engine damage.
Need a Replacement DV5 Engine?
If you're looking for a replacement DV5 engine or need advice about a suspected DV5 timing chain problem, Approved Engines can help.
We specialise in replacement engines and known problem engines, with upgrades designed to address recognised weaknesses rather than simply repeat them.
For the Ford Transit Connect 1.5 TDCi EcoBlue Euro 6 engine, view our replacement engine option here:
Brand New Ford Transit Connect 1.5 TDCi EcoBlue Euro 6 Engine
Contact Approved Engines today for DV5 engine advice, engine supply, or supply and fit options.
