KNOWN FAULTS · Chrysler

Chrysler 300C (LD) 3.0 CRD common problems.

2012–2015 · Diesel

Sources are not verified in real time and no entry confirms that your car is affected.

2 known faults with sources

Applies if: Only with automatic multi-zone climate control.

One side of the climate control blows colder air because of a faulty sun sensorClimate control

Engine / equipment: Grand Voyager (RT) and 300C (LD) with multi-zone climate control
Period mentioned: 2012–2015
Symptoms: With automatic climate control and the same temperature on both sides, one side gets noticeably colder air; with no warning.
Possible cause described: The sun sensor on the dashboard gives a false reading on one side. It leaves no fault code. According to Chrysler's technical tip (July 2016), the garage checks it by shining an incandescent lamp on each side of the sensor and seeing that both readings change equally.
Check for the garage: Check that nothing is covering the sensor on the dashboard. At the garage, ask for the sun sensor test before replacing flap motors.
Cost cited in the source: No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.

EGR cooler and bearings on the VM 3.0 V6 diesel (EcoDiesel)Engine

Engine / equipment: VM Motori 3.0 V6 diesel (A630, “EcoDiesel”): Jeep Grand Cherokee and Gladiator, Chrysler 300C, Lancia Thema and Maserati Ghibli, Quattroporte and Levante
Period mentioned: 2011 onwards
Symptoms: Coolant loss, white smoke or combustion in the intake manifold (cracked EGR cooler); deep metallic knock and the oil-pressure warning (bearings); on engines from 2020, low oil-pressure warnings or a failing high-pressure pump shedding metal.
Possible cause described: According to mechanics and owners, the EGR cooler cracks from thermal fatigue (Chrysler recalled it) and the crankshaft bearings can fail from lugging at low revs or carbon in the oil passages. On the third generation (from 2020) there was a recall for the Bosch CP4.2 fuel pump. Maserati uses the same VM engine in its diesels.
Check for the garage: Check the EGR-cooler and pump campaigns by VIN; watch the coolant and oil pressure; with knocking or the oil warning, stop. Avoid lugging the engine at very low revs under heavy load.
Cost cited in the source: No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.