Faults:

Automatic transmission failures, such as abrupt changes, delayed response, or leaks, make it critical to change the ATF oil every 60,000 km.

Although very comfortable, hydropneumatic suspension suffers from fluid leaks or pump failure, resulting in poor handling and costly repairs.

Regarding the electrical system, common faults include the control unit (ECU), warning lights on the dashboard, power windows, and faulty sensors.

The 3.0 V6 engine gets quite hot in extreme heat or on steep inclines, especially if the cooling system is not in optimal condition.

General Comments:

The car is a worthy replacement for the XM; it has everything its predecessor offered but with a more modern and timeless design, more accessories, and much more comfort.

Today the car doesn't have the value it once did, but it's true that it was a worthy competitor to any Audi, Mercedes or BMW from the mid-2000s. Although it was only produced for a few years and production ceased some time ago, in my opinion, the C6 remains Citroën's benchmark vehicle; this brand never again made a large and luxurious car like this.

The one I have was the only petrol engine variant, the 3.0 V6 with 24 valves, synonymous with smoothness and refinement, clearly designed for long journeys at high speeds on any highway or motorway.

The engine was mounted transversely in the engine bay, with internal dimensions of 87 x 82.6 mm and a 24-valve cast aluminum cylinder head, capable of producing 211 hp at 6,000 rpm and a maximum torque of 290 Nm at 3,750 rpm. It was a step above the entry-level four-cylinder engines offered by its German rivals.

The final performance figures, while not stratospheric, move the French vessel quite decently, reaching a top speed of 230 km/h, accelerating from 0 to 100 km/h in 8.4 seconds, and covering a kilometer from a standstill in just over 30 seconds. The hydropneumatic suspension, exceptionally smooth, lowers its ride height as speed increases.

As for comfort and safety, once inside, even just a glance reveals the quality and attention to detail that went into this car. Leather is everywhere, wood trim is present, and there's a plethora of electronic gadgets, such as a head-up display projected onto the windshield (HUD), and a complete sound and navigation system.

The Pallas version, which is the one I have, has, among other safety systems, a lane change warning system that sends vibration signals to the driver's seat.

Without a doubt, the equipment, technological level and its excellent soundproofing are the most powerful qualities of the vehicle, making it completely enjoyable today despite being almost 20 years old.

Faults:

Nothing.

General Comments:

Comfortable.

Noiseless.

All the power you need.

6.2 Lt's per 100 K's on trips.

8 Lt's per 100 K's in city.

Faults:

Coil-On-Plug Ignition failure on one cylinder, all 6 replaced as a preventive measure.

LR side window closing sequence upset by faulty door sensor.

Suspension sensor failure caused system to go into Road Hook mode.

All A/M problems quickly diagnosed and solved.

General Comments:

This is an excellent car in every respect.

The joy of traveling comfortably and yet enjoying the true pleasure of driving is achieved by the car's instantaneous adaptation to road conditions and the driver's wishes, be it a change of speed and direction, or driving style.

It feels light, smooth and capable in every situation. The car is highly recommendable. The downside is the extent to which it draws people's attention, and you'd better drive a German or Swedish car to pass incognito.