DV6C 1.6 HDi
The small PSA diesel found in half of Europe. It's economical and perfectly decent, and it has one habit that matters: the turbo oil feed cokes up when servicing is skipped, and the turbo goes with it.
| Configuration | I4, turbocharged | Displacement | 1560 cc |
| Fuel | diesel | Injection | common rail |
| Shared components | DPF · EGR cooler | ||
Cars using this engine
Engine and component issues
Warning light, limp mode, oil level rising above the maximum mark from fuel dilution. The filter needs sustained hot running to regenerate. A car used for short urban trips never completes a regeneration cycle.
Check: Read the DPF soot load and the distance since the last regeneration on a scan tool, and check the engine oil level and smell it for diesel. Ask what the car was used for. A short-trip city diesel is the wrong car regardless of mileage.
A whine or rattle from the turbo, loss of boost, blue smoke, and an oil-pressure or boost warning. The narrow oil feed pipe to the turbocharger cokes up when oil changes are stretched or the wrong grade is used. Once flow is restricted the turbo bearing fails, and debris can then travel through the engine. It's a maintenance failure rather than a design one, which is why the service record matters so much.
Check: Read the service book before you drive the car and treat stretched or missing oil changes as a turbo on borrowed time. Listen for a whine on boost and check for oil in the intake pipework.
Coolant loss with no visible external leak, white smoke, sweet smell. The EGR cooler cracks internally and leaks coolant into the intake. BMW recalled affected diesels over a fire risk from glycol deposits igniting.
Check: Check coolant level and look for unexplained top-ups in the service history. Verify the recall was carried out. It's free and searchable by VIN.
Chassis, gearbox and body issues aren't listed here. They depend on which car the engine is fitted to. Open a variant page for the merged list.