Mazda CX-7 (2006–2012)Faults with the injectors
Injectors of the Mazda CX-7: problems and faults
In the Mazda CX-7 there are 2 documented faults with the injectors: oil dilution from leaking injector seals and DPF regenerations (MZR-CD engine) and carbon on the injectors, EGR valve and intake (MZR-CD engine).
- High severity: Oil dilution from leaking injector seals and DPF regenerations · MZR-CD engine
- Medium severity: Carbon on the injectors, EGR valve and intake · MZR-CD engine
Most serious fault: High severity
Problems with the injectors on the the MZR-CD
From most to least important. Check the affected years and versions on each page.
Symptoms these faults cause
Parts for the Mazda CX-7 for faults with the injectors
The same search across several shops so you can compare prices. The part number varies with the engine and year: confirm it with the registration plate or VIN.
Injector sealing washers (fire seal)
EGR valve
Affiliate links: if you buy from these shops, MotorFiable may receive a commission at no cost to you. Check compatibility against the registration plate or VIN before ordering. Affiliate links
Frequently asked questions
What faults with the injectors does the Mazda CX-7 have?
In the Mazda CX-7 there are 2 documented faults with the injectors: oil dilution from leaking injector seals and DPF regenerations (MZR-CD engine) and carbon on the injectors, EGR valve and intake (MZR-CD engine). Each fault has its own page with the affected years and versions, the symptoms and how to check for it.
Which engines of the Mazda CX-7 have faults with the injectors?
The documented faults affect the MZR-CD. Check the years and versions on each page: they do not always affect every unit.
Have you had a fault with the injectors on your Mazda CX-7? Tell us at what mileage and how much you paid. Report your fault.
Sources
Every fact on this page links to its source. If you find an error, let us know.
- Fiabilité Mazda 6 (2002-2008)Fiches-auto.fr · Motoring press · consulted 27 September 2026 · in French