KNOWN FAULTS · Ford

Ford Mondeo (IV) common problems.

2007–2014 · Petrol / Diesel

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

3 known faults with sources

Engines: 1.6 / 2.0 / 2.3 Duratec (Petrol) · 1.6 / 2.0 EcoBoost (Petrol) · 1.6 / 1.8 / 2.0 / 2.2 TDCi (Diesel)

Applies if: Weak points of this model from inspections, breakdown statistics and recalls; anything specific to one engine is stated in the sheet.

Suspension, exhaust, electronics and campaigns on the Mondeo IVKnown weak points

Engine / equipment: Ford Mondeo IV (petrol and diesel)
Period mentioned: 2007–2014
Symptoms: Play in suspension and steering joints at the roadworthiness test, many exhaust defects and oil leaks; immobiliser (2007–2010), engine management (2007–2013), camshaft sensor, starter; on diesels, a clogged particulate filter (up to 2012), boost control and CAN bus (2012).
Possible cause described: Recalls: a control unit (several systems failing, fixed by software), the brake-servo check valve, the pressure plate (fire risk) and 2.2 TDCi injector O-rings that can leak fuel onto the hot engine.
Check for the garage: Check campaigns by VIN; check suspension, exhaust and leaks; on diesels, the particulate filter.
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.

Engines: 1.6 / 2.0 EcoBoost (Petrol)

Applies if: Only the 1.6 EcoBoost. Ford USA bulletin for the same engine.

Lack of power with the engine warning light and P0299 / P0234 on the 1.6 EcoBoost: wastegate solenoidInjection / turbo

Engine / equipment: 1.6 EcoBoost direct injection: Focus, C-Max, Kuga, Fiesta ST, Mondeo and Transit Connect
Period mentioned: 2013–2016
Symptoms: The engine loses power and the engine warning light comes on. The computer stores codes P0234 (turbo overboost), P0245 or P0246 (wastegate solenoid circuit) or P0299 (turbo underboost).
Possible cause described: Ford bulletin 15-0162 (October 2015) for the 1.6 EcoBoost of the Escape, Fiesta ST and Fusion says to check the charge-air-cooler pipes and vacuum lines first; if they are fine, the cause is the solenoid valve that regulates the turbo wastegate, and it is replaced.
Check for the garage: Read the codes. Check that the charge-air-cooler pipes and vacuum lines are not split or loose; if they are fine, test the wastegate solenoid (under the engine) and make sure its hoses are fully fitted before replacing the turbo.
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.

Engines: 1.6 / 1.8 / 2.0 / 2.2 TDCi (Diesel)

Applies if: Only the 1.6 TDCi.

1.6 TDCi turbo starved of oilInjection / turbo

Engine / equipment: 1.6 TDCi (DV6)
Period mentioned: Approx. 2004–2018
Symptoms: Hissing from the engine, diesel smell in the cabin, very dark oil between changes and, eventually, a failing turbo with smoke and loss of power.
Possible cause described: The injectors’ copper washers stop sealing; the gases form carbon that gets into the oil and blocks the mesh filter in the turbo oil-feed pipe, starving the turbo. The wrong oil and switching off with the turbo very hot make it worse.
Check for the garage: Check the injector washers and the turbo oil-feed filter. If the turbo is replaced, also clean the sump, intercooler and feed pipe, or the new turbo can fail again. Use low-SAPS oil.
Cost cited in the source: Approx. €1,200–2,500 for a turbo replacement with oil-circuit cleaningA rough figure from the original database, not an up-to-date quote.