France's Stephane Peterhansel was penalised five minutes after his team-mate pushed his car during Monday's stage but hung on to his overall lead.
Stephane Peterhansel on Monday's stage of the Dakar Rally
Peterhansel's Mitsubishi team-mate Hiroshi Masuoka was declared the winner of the fifth stage and is now just one minute 12 seconds behind overall.
Peterhansel was assisted by Andrea Mayer 300m from the finish line after hitting gearbox problems.
Britain's Colin McRae fell to eighth after a penalty for speeding.
The Scot broke the speed limit in a prohibited zone in Er
Peterhansel said: "We had a problem
with the gearbox 80 km from the (overnight) bivouac. Andrea
Mayer pushed us with her car. I hope it's the first and last
In the motorbike event, leader Esteve Pujol of Spain increased his lead, coming
in 16 seconds ahead of fellow Spaniard Nani Roma.
Italy's Fabrizio Meoni made it a clean sweep for KTM, finishing 22 seconds behind the leader.
Overall positions on stage five:
1 Stephane Peterhansel (Fra) Mitsubishi four hours 31 minutes 31 seconds
2 Hiroshi Masuoka (Jap) Mitsubishi 1:12 behind
3 Gregoire de Mevius (Bel) BMW 10:33
4 Luc Alphand (Fra) BMW 10:57
5 Giniel de Villiers (SA) Nissan 11:05
8. Colin McRae (GB) Nissan 18:42
1 Isidre Esteve Pujol (Spa) KTM
three hours 44 minutes 27 seconds
2 Nani Roma (Spa) KTM +16 seconds
3 Fabrizio Meoni (Ita) KTM
4 Cyril Despres (Fra) KTM
5 Andy Caldecott (Aus) KTM