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MotorFiable

RLZ

2.0 HPi 140 hp direct injection (EW10D, RLZ, 2001-2004) engine: faults and reliability

PSA 2.0 16v EW10 and 2.2 16v EW12 (gasolina, 1999-2010) version

With caution

There is hardly any data: the C5 page records a single, very negative review, and the 406 page none. The C5 page describes the high-pressure pump and the sensors as more delicate and mentions, without a date or reference, a weakness of the pump in 2002 units; its history needs to be verified.[1][2]

Years
2001–2004
Power
140 hp
Faults that affect it
1
0 of high or critical severity
Cars that use it
2
in our database

5 sourcesHow we work

What changes in this version

PSA's first direct-injection petrol engine (HPi), with 140 hp. It was offered only in the Citroën C5 and the Peugeot 406 from 2001 and was withdrawn around 2003 or 2004 because of poor sales.[3][4]

Engine codes of this version: RLZ.

Faults of the RLZ engine

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

  1. 1Medium severityFrequency: OccasionalIgnitionFaulty ignition coilsIgnition coils are the fault reported by the press (gebrauchtwagenberater.de, CarsGuide) and by 16 of the 170 owner reviews of the 2.0 EW10; they also appear on the 2.2. A weak coil causes misfires, jerking and the engine warning light coming on.

Cars fitted with the RLZ engine

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

Citroën

Peugeot

Frequently asked questions

Is the RLZ engine reliable?

Our verdict is “With caution”. There is hardly any data: the C5 page records a single, very negative review, and the 406 page none. The C5 page describes the high-pressure pump and the sensors as more delicate and mentions, without a date or reference, a weakness of the pump in 2002 units; its history needs to be verified.[1][2]

What faults does the RLZ engine have?

The documented ones that affect this version, by importance: faulty ignition coils (medium severity).

Which cars use the RLZ engine?

Peugeot 406 (1999–2004) and Citroën C5 I (2001–2007).[1][2][4][5]

Are you buying a car with the RLZ 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. Tous les problèmes sur Citroën C5 2001-2008 (opiniones por motorización)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
  2. Tous les problèmes sur Peugeot 406 1995-2004 (opiniones por motorización)Fiches-auto.fr · Owners' forum · consulted 8 October 2026 · in French
  3. PSA EW/DW engineWikipedia (inglés) · Other source · consulted 8 October 2026
  4. Peugeot 406Wikipedia (inglés) · Other source · consulted 8 October 2026
  5. Citroën C5Wikipedia (inglés) · Other source · consulted 8 October 2026