De 406, de opvolger van de sinds 1987 leverbare 405, werd najaar 1995 uitgebracht
Benzinemotoren vanaf het begin                                                                       Vraagbaak 1995-1997                              op internet ook
                Juli 1996       1.6   8V         90 pk / 6000          XU5J P                MMS             Bosch MP 5.1.1
                                     1.8 16V      112 pk/5500            XU7 JP4               MMS Bosch MP 5.1.1 / Sagem SL96        Bosch MP 5.1.1
                                     2.0 16V      136 pk/5500            XU 10 J4R            MMS Bosch MP 5.1.1
             April 1996        2.0 16V      150 pk/5300            XU 10 J2CTE       MMS Bosch MP 3.2
                Juli 1996       3.0 V6          194/xxxxx               ES9J4                   MMS Bosch  MP7.0?
Dieselmotoren                1.9 8V   TD   90 pk./4000           XUD9 TF/L
                                     2.1 12V TD 110 pk./4300           XUD11 BTE/L

1999 vernieuwde 406 (D9 versie)
Benzinemotoren
                                      1.8   8V         90 pk / 6000         XU7JB                                                                                    Magneti Marelli IAW 8P-14
                                     1.8 16V      112 pk/5500            XU7 JP4
                Nw motor     2.0 16V      138 pk/5500            XU 10 J4R
                                     2.0 16V      150 pk/5300            XU 10 J2CTE
                                     2.2 16V     160 pk./xxx               xxxxxxxxxx
                                     3.0 V6          194/xxxxx               ES9J4
                       In 2000 3.0 V6          210/xxxxx               ES9J4S
Dieselmotoren                1.9 8V   TD   90 pk./4000           XUD9 TF/L
                                     2.1 12V TD 110 pk./4300           XUD11 BTE/L
                                     2.2 12V HDi 136 pk./4300          XUD11 BTE/L

De 406 Coupe werd najaar 1997 uitgebracht
Benzinemotoren                                                                                          Vraagbaak 1995-1997                              op internet ook
                1997 - 1999   2.0 1 6V      135 pk /5500       180 Nm /4500            XU 10 J4R            MMS Bosch MP 5.1.1     H/A
                1999 - 2004   2.0 1 6V      138 pk /5500       190 Nm /4100            XU 10 J4R            MMS Bosch MP 5.1.1     H/A
                2002 - 2004   2.2 1 6V      160 pk ./5650      217 Nm /3900               xxxxxxxxxx                                                       H
                1997 - 2000     3.0 V6       194 pk /5500       267 Nm /4000            ES9J4                   MMS Bosch  MP7.0?        H/A
                2000 - 2004     3.0 V6       210 pk /6000       285 Nm /3750            ES9J4S                 MMS Bosch  MP7.4.6       H / A

Dieselmotoren  
                 2001 - 2004   2.2 12V HDi 136 pk./4000     314 Nm /2000            XUD11 BTE/L                                                  H