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8HZ8HXDV4TD8HT

1.4 HDi/TDCi 54/68/70 8V (DV4TD, 2001-2009) engine: faults and reliability

PSA/Ford 1.4 HDi and TDCi (DV4TD) version

With caution

It shares the injector fragility of the rest of the family, documented in both the 68 and 70 hp versions, along with occasional turbo and EGR valve failures. It is worth buying with a maintenance history and no noticeable diesel leaks.[1][2]

Years
2001–2009
Power
54–70 hp
Faults that affect it
5
1 of high or critical severity
Cars that use it
12
in our database

13 sourcesHow we work

What changes in this version

The original version of the family: 8-valve cylinder head and a single camshaft, no intercooler, with a fixed-geometry BorgWarner KP35 turbo. It is the most widely fitted variant, with outputs of 54, 68 or 70 hp depending on the injection pump setting and the brand (Peugeot, Citroën, Ford, Mazda, Toyota).[3][4]

Engine codes of this version: 8HZ, 8HX, DV4TD, 8HT.

Faults of the 8HZ engine

The documented engine faults that affect this version and its years, from most to least important.

  1. 1Medium severityFrequency: Very frequentInjectionInjectors that lose their seal and let diesel escapeThe most cited weak point of the 1.4 HDi is its injectors: over time they can lose their seal and let diesel escape, which is usually noticed as a smell of diesel in the car. It appears in the two most common outputs (68 and 70 hp) and in both cases it is identified as the engine's main weakness.
  2. 2High severityFrequency: OccasionalTimingTiming belt and water pumpThe 1.4 HDi uses a timing belt (with an additional short chain on the 16-valve version), and Fiches-Auto documents some of its failures, along with the water pump, at around 100,000 km. We have not found the manufacturer's official change interval in a reliable source.
  3. 3Medium severityFrequency: OccasionalTurboPremature turbo wear from poor lubricationThe BorgWarner KP35 turbo of the 8-valve version can wear out early when the oil degrades and forms carbon deposits, reducing its lubrication. It is a minority but recurring fault: it appears in just over 9% of the reports collected for the 68 hp version.
  4. 4Medium severityFrequency: OccasionalEmissions controlEGR valve clogged with carbonThe EGR valve, which recirculates part of the exhaust gases to reduce emissions, can seize or clog up with the carbon those gases carry. It appears in a noticeable minority of the reports collected for the 68 hp version.
  5. 5Medium severityFrequency: RareTimingCrankshaft damper pulley wearThe crankshaft pulley incorporates a rubber ring that dampens engine vibrations and that can lose grip or crack over time. We have found only one specific report of this fault (a Peugeot 206 at around 250,000 km), so we do not consider it a widespread fault.

Cars fitted with the 8HZ engine

Open each car to see all its faults with this engine and what to check before buying it.

Citroën

Ford

Mazda

Peugeot

Toyota

Frequently asked questions

Is the 8HZ engine reliable?

Our verdict is “With caution”. It shares the injector fragility of the rest of the family, documented in both the 68 and 70 hp versions, along with occasional turbo and EGR valve failures. It is worth buying with a maintenance history and no noticeable diesel leaks.[1][2]

What faults does the 8HZ engine have?

The documented ones that affect this version, by importance: injectors that lose their seal and let diesel escape (medium severity), timing belt and water pump (high severity), premature turbo wear from poor lubrication (medium severity), EGR valve clogged with carbon (medium severity) and crankshaft damper pulley wear (medium severity).

Which cars use the 8HZ engine?

Peugeot 206 (2001–2009), Peugeot 207 (2006–2010), Peugeot 1007 (2005–2009), Citroën C1 I (2005–2010), Citroën C2 (2004–2009), Citroën C3 I (2002–2009), Citroën C3 II (2009–2010), Ford Fiesta V (2003–2008), Ford Fiesta VII (2008–2010) and Ford Fusion (2002–2012), among 2 others.[3][4][5][6][7][8][9][10][11]

Are you buying a car with the 8HZ engine?

We will put you in touch with a partner only if you authorise it in the form.

Do you have a car with this engine? Tell us which faults you have had and at how many kilometres. Report your fault.

Sources

Every fact on this page links to its source. If you find an error, let us know.

  1. Essai, avis et fiabilité des 1.4 HDI 68 chFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
  2. Essai, avis et fiabilité des 1.4 HDI 70 chFiches-Auto.fr · Motoring press · consulted 27 September 2026 · in French
  3. Peugeot DV4TD engine: specifications and applicationsMyMotorList · Technical documentation · consulted 27 September 2026
  4. Ford Duratorq engineWikipedia (en) · Other source · consulted 27 September 2026
  5. Motor PSA DVWikipedia (es) · Other source · consulted 27 September 2026 · in Spanish
  6. Ford FiestaWikipedia (es) · Other source · consulted 27 September 2026 · in Spanish
  7. Peugeot 1007Wikipedia (es) · Other source · consulted 27 September 2026 · in Spanish
  8. Citroën C1Wikipedia (en) · Other source · consulted 27 September 2026
  9. Citroën C2Wikipedia (es) · Other source · consulted 27 September 2026 · in Spanish
  10. Peugeot DV4TED4 engine: specifications and applicationsMyMotorList · Technical documentation · consulted 27 September 2026
  11. Ford Fusion (Europa)Wikipedia (es) · Other source · consulted 27 September 2026 · in Spanish
  12. Mazda2Wikipedia (en) · Other source · consulted 27 September 2026
  13. Toyota AygoWikipedia (en) · Other source · consulted 27 September 2026