Many minor electrical faults.
Heater packed up, took 3 dealer visits to fix, was in for 1 week as the whole dashboard had to be removed to replace the main control box and fans etc.
Replacement engine fitted at 40,000 miles during it's first recall. Dealer broke an injector in the head, no replacement heads available so new engine had to be fitted. Took several weeks to complete the work.
Second replacement engine at 66,000 miles. Engine started sucking the oil from the sump into the intake, continued running after the key was removed and carried on until it eventually seized, but only after engulfing both carriageways of the M6 in smoke.
Performance is now very poor since the last replacement engine and fuel consumption has dropped by 12 mpg.
Boot lock fails to release 7 times out of 10.
Drivers seat has broken and now rocks 1" back and forth.
Drivers window failed in the fully open position, requiring an emergency repair.
Air conditioning has now failed.
Probably forgotten some of the more minor reliability niggles.
When it is running well it is a very comfortable motorway cruiser, with reasonable economy for a big car. It used to average 42mpg.
The equipment level is very good.
The key fob is too sensitive, it is very easy to open the boot unknowingly. I have found the boot wide open several times in my drive in the morning.
The wheels require special balancing equipment, not all tyre dealers have the equipment.
I was considering buying a 53 607 executive, but after reading some of the comments and reviews on this site don't think I will bother. A mechanic once said to me that the french mechanics and electrics are a recipe for disaster and it sounds as if he was right.
I retire with a lump sum in 3 months time and am looking for a replacement car for my remapped 160 bhp 2003 MGZT. It will have to be reliable and have good power. I was thinking of the 607 with the big bhp diesel, but on reading these reviews I cannot justify the potential for huge expenditure out of warranty as experienced by several, so I have now scrubbed the 607 off my short list - such a pity as it's almost the perfect car, leaving only the Audi A6 or A8, or, heaven forbid, the ultra reliable Toyotas! I will be checking out reviews on these next!
I have the 3.0 Lt version. Very luxurious, but the reliability of the car is an expensive adventure: I have had to resort to replacing Peugeot parts (even though they are still under guarantee) with compatible parts from other makes where possible because Peugeot's own have been defective within the shortest time. This is extremely tedious when you need your car for work: the car is at the mechanics on average once every 6 weeks. The spare parts are astronomically expensive. If you can afford this then it is otherwise a dream to drive.