The gearbox itself is reliable, but the shift mechanism wears noticeably between 100,000 and 150,000 km.
Applies to the transmission MMT6.
2003–2007. The fault list covers this generation and the engines in it. If the listing gives the exact version, pick it below.

Vauxford / CC BY-SA 4.0
What to watch for
The list covers the generation, the engines and the transmissions. Once you pick the version, only the faults that apply to it stay.
The gearbox itself is reliable, but the shift mechanism wears noticeably between 100,000 and 150,000 km.
Applies to the transmission MMT6.
The gearbox itself is reliable and has two weak points.
Applies to the transmission MTX75.
Engines and transmissions in this generation
A fault is often tied to the engine, not to the whole generation. You find the engine code in the registration document.
Mk3.5 · 2003–2007
The fault list opens on the version page.
183 versions
1.8 l · 1798 cm³
CGBA · CGBB · MTX75
1.8 16V 110hp Ambiente
2003–2005 · Ambiente
1.8 l · 1798 cm³
CGBA · CGBB · MTX75
1.8 16V 110hp Ambiente
2003–2005 · Ambiente
1.8 l · 1798 cm³
CGBA · CGBB · MTX75
1.8 16V 110hp Ambiente
2003–2005 · Ambiente
1.8 l · 1798 cm³
CGBA · CGBB · MTX75
1.8 16V 110hp Futura
2003–2005 · Futura
1.8 l · 1798 cm³
CGBA · CGBB · MTX75
1.8 16V 110hp Futura
2003–2005 · Futura
1.8 l · 1798 cm³
CGBA · CGBB · MTX75
1.8 16V 110hp Futura
2003–2005 · Futura
1.8 l · 1798 cm³
CHBA · CHBB · MTX75
1.8 16V 125hp Ambiente
2003–2005 · Ambiente
1.8 l · 1798 cm³
CHBA · CHBB · MTX75
1.8 16V 125hp Ambiente
2003–2005 · Ambiente
1.8 l · 1798 cm³
CHBA · CHBB · MTX75
1.8 16V 125hp Ambiente
2003–2005 · Ambiente
1.8 l · 1798 cm³
CHBA · CHBB · MTX75
1.8 16V 125hp First Edition
2003–2005 · First Edition
1.8 l · 1798 cm³
CHBA · CHBB · MTX75
1.8 16V 125hp First Edition
2003–2005 · First Edition
1.8 l · 1798 cm³
CHBA · CHBB · MTX75
1.8 16V 125hp First Edition
2003–2005 · First Edition
1.8 l · 1798 cm³
CHBA · CHBB · MTX75
1.8 16V 125hp Futura
2003–2005 · Futura
1.8 l · 1798 cm³
CHBA · CHBB · MTX75
1.8 16V 125hp Futura
2003–2005 · Futura
1.8 l · 1798 cm³
CHBA · CHBB · MTX75
1.8 16V 125hp Futura
2003–2005 · Futura
1.8 l · 1798 cm³
CHBA · CHBB · MTX75
1.8 16V 125hp Platinum
2005–2007 · Platinum
1.8 l · 1798 cm³
CHBA · CHBB · MTX75
1.8 16V 125hp Platinum
2005–2007 · Platinum
1.8 l · 1798 cm³
CHBA · CHBB · MTX75
1.8 16V 125hp Platinum
2005–2007 · Platinum
1.8 l · 1798 cm³
CHBB · CHBA · MTX75
1.8 16V 125hp Trend
2003–2005 · Trend
1.8 l · 1798 cm³
CHBA · CHBB · MTX75
1.8 16V 125hp Trend
2003–2005 · Trend
1.8 l · 1798 cm³
CHBA · CHBB · MTX75
1.8 16V 125hp Trend
2003–2005 · Trend
1.8 l · 1798 cm³
CFBA · MMT6
1.8 SCi 16V 125hp Sport
2003–2005 · SCi 16V 125hp Sport
1.8 l · 1798 cm³
CFBA · MMT6
1.8 SCi 16V 125hp Sport
2003–2005 · SCi 16V 125hp Sport
1.8 l · 1798 cm³
CFBA · MMT6
1.8 SCi 16V Sport
2003–2005 · SCi 16V Sport
2.0 l · 1998 cm³
D5BA · SDBA · MMT6
2.0 TDdi 90hp Ambiente
2003–2005 · Ambiente
2.0 l · 1998 cm³
D5BA · SDBA · MMT6
2.0 TDdi 90hp Ambiente
2003–2005 · Ambiente
2.0 l · 1998 cm³
D5BA · SDBA · MMT6
2.0 TDdi 90hp Ambiente
2003–2005 · Ambiente
2.0 l · 1998 cm³
D6BA · HJBA · MMT6
2.0 TDCi 115hp Ambiente
2003–2005 · Ambiente
2.0 l · 1998 cm³
D6BA · HJBA · MMT6
2.0 TDCi 115hp Ambiente
2003–2005 · Ambiente
2.0 l · 1998 cm³
D6BA · HJBA · MMT6
2.0 TDCi 115hp Ambiente
2003–2005 · Ambiente
2.0 l · 1998 cm³
D6BA · HJBA
2.0 TDCi 115hp First Edition
2003–2005 · First Edition
2.0 l · 1998 cm³
D6BA · HJBA · MMT6
2.0 TDCi 115hp First Edition
2003–2005 · First Edition
2.0 l · 1998 cm³
D6BA · HJBA · MMT6
2.0 TDCi 115hp First Edition
2003–2005 · First Edition
2.0 l · 1998 cm³
D6BA · HJBA
2.0 TDCi 115hp First Edition
2003–2005 · First Edition
2.0 l · 1998 cm³
D6BA · HJBA · MMT6
2.0 TDCi 115hp First Edition
2003–2005 · First Edition
2.0 l · 1998 cm³
D6BA · HJBA
2.0 TDCi 115hp First Edition
2003–2005 · First Edition
2.0 l · 1998 cm³
D6BA · HJBA
2.0 TDCi 115hp Futura
2003–2005 · Futura
2.0 l · 1998 cm³
D6BA · HJBA
2.0 TDCi 115hp Futura
2003–2005 · Futura
2.0 l · 1998 cm³
D6BA · HJBA · MMT6
2.0 TDCi 115hp Futura
2003–2005 · Futura
2.0 l · 1998 cm³
D6BA · HJBA · MMT6
2.0 TDCi 115hp Futura
2003–2005 · Futura
2.0 l · 1998 cm³
D6BA · HJBA
2.0 TDCi 115hp Futura
2003–2005 · Futura
2.0 l · 1998 cm³
D6BA · HJBA · MMT6
2.0 TDCi 115hp Futura
2003–2005 · Futura
2.0 l · 1998 cm³
D6BA · HJBA · MMT6
2.0 TDCi 115hp Platinum
2005–2007 · Platinum
2.0 l · 1998 cm³
D6BA · HJBA · MMT6
2.0 TDCi 115hp Platinum
2005–2007 · Platinum
2.0 l · 1998 cm³
D6BA · HJBA
2.0 TDCi 115hp Platinum
2005–2007 · Platinum
2.0 l · 1998 cm³
D6BA · HJBB
2.0 TDCi 115hp Platinum
2005–2007 · Platinum
2.0 l · 1998 cm³
HJBC · D6BA · MMT6
2.0 TDCi 115hp Platinum
2005–2007 · Platinum
2.0 l · 1998 cm³
D6BA · HJBA
2.0 TDCi 115hp Platinum
2005–2007 · Platinum
2.0 l · 1998 cm³
D6BA · HJBA
2.0 TDCi 115hp Trend
2003–2005 · Trend
2.0 l · 1998 cm³
D6BA · HJBB
2.0 TDCi 115hp Trend
2003–2005 · Trend
2.0 l · 1998 cm³
D6BA · HJBA · MMT6
2.0 TDCi 115hp Trend
2003–2005 · Trend
2.0 l · 1998 cm³
D6BA · HJBA
2.0 TDCi 115hp Trend
2003–2005 · Trend
2.0 l · 1998 cm³
D6BA · HJBA · MMT6
2.0 TDCi 115hp Trend
2003–2005 · Trend
2.0 l · 1998 cm³
D6BA · HJBA · MMT6
2.0 TDCi 115hp Trend
2003–2005 · Trend
2.0 l · 1998 cm³
FMBA
2.0 TDCi 130hp First Edition
2003–2005 · First Edition
2.0 l · 1998 cm³
FMBA
2.0 TDCi 130hp First Edition
2003–2005 · First Edition
2.0 l · 1998 cm³
FMBA · MMT6
2.0 TDCi 130hp First Edition
2003–2005 · First Edition
2.0 l · 1998 cm³
FMBA
2.0 TDCi 130hp First Edition
2003–2005 · First Edition
2.0 l · 1998 cm³
FMBA · MMT6
2.0 TDCi 130hp First Edition
2003–2005 · First Edition
2.0 l · 1998 cm³
FMBA · MMT6
2.0 TDCi 130hp First Edition
2003–2005 · First Edition
Neighbouring generations
Mondeo '01 facelift. If the listing is from the changeover year, look at the neighbour too.
Common questions
2003–2007. The changeover year can fall in two generations. If the listing is from that year, look at the neighbour too.
No. It depends on the engine and the transmission too.
The fault list is.
We write the descriptions, and we put the source next to them. A person reviews them before they go out. They are still information, not a technical expert opinion.