Description

This is a fully reconditioned Garrett GT17V turbocharger for the Ford Mondeo 2.0 TDCi MK4 (140 HP model) manufactured between 2007 and 2014. As a Variable Nozzle Turbine (VNT) unit, it provides excellent throttle response and efficiency across the engine’s rev range by adjusting exhaust gas flow over the turbine wheel.

At Gap Turbos, we have seen these units in our Birmingham workshop for over a decade. Common failure modes are specific to this platform. The most frequent issue is the seizure of the VNT mechanism due to excessive carbon and soot build-up, often linked to EGR valve problems or driving patterns with many short journeys. This leads to ‘overboost’ or ‘underboost’ fault codes and the vehicle entering limp mode. Another common fault lies with the electronic actuator, which can fail electrically or mechanically, causing similar boost control problems. Standard bearing wear within the Centre Housing Rotating Assembly (CHRA) also occurs, typically caused by oil contamination or oil starvation from a blocked feed pipe.

Our reconditioning service is a comprehensive process. We completely dismantle the turbocharger and ultrasonically clean every component. All service parts, including journal and thrust bearings, piston rings, and oil seals, are replaced with new OE-spec items. The CHRA is then balanced on our VSR machine at speeds exceeding 150,000 RPM, ensuring performance and longevity beyond original factory tolerances. Finally, the VNT mechanism and electronic actuator are calibrated on a flow bench to guarantee correct boost delivery upon fitting.

We can recondition your existing turbo, supply a reconditioned unit from our stock on an exchange basis, or provide a complete supply and fit service. We can also perform a full diagnostic and clean of the vehicle’s intake and EGR system to prevent a repeat failure.

What this turbocharger fits

• Vehicle: Ford Mondeo MK4
• Engine: 2.0 TDCi (Diesel)
• Engine Codes: QXBA, AZBA
• Power Output: 140 HP
• Year Range: 2007 – 2014
• OEM Part Number: 7G9Q6K682BD
• Alternative Part Number: 763647-5021s

For an accurate quote and to discuss your requirements, please contact Gap Turbos. All our reconditioned turbochargers are supplied with a 24-month warranty.

Specifications

Vehicle fitment

• Ford Mondeo 2.0 TDCi MK4

Common faults & troubleshooting

• Sudden loss of power and engine management light on: This is the classic symptom of ‘limp mode’, often caused by a seized VNT mechanism or a faulty electronic actuator triggering an overboost or underboost fault code.
• High-pitched whistling or siren noise under acceleration: This indicates worn bearings or a damaged compressor wheel, usually resulting from oil starvation or foreign object damage.
• Visible blue or grey smoke from the exhaust: This is caused by failed oil seals within the turbo’s centre housing, allowing engine oil to leak into the intake or exhaust system and be burnt.
• Poor fuel economy and sluggish performance: If the VNT vanes are partially stuck, the turbo cannot operate efficiently, leading to poor combustion, reduced power, and increased fuel consumption.
• Rattling noise on engine start-up or shut-down: This can be from excessive play in the actuator linkage or wear in the VNT mechanism itself.

Fitting notes for this unit

• Oil Feed Pipe MUST Be Replaced: The oil feed pipe for the 2.0 TDCi engine contains a fine internal gauze filter which cannot be effectively cleaned. It must be replaced with a new genuine Ford part to prevent oil starvation and immediate failure of the new turbo.
• Prime The Turbo Before Starting: Before connecting the oil feed pipe, use a syringe to squirt 10-20ml of new, clean engine oil directly into the turbo’s oil inlet port. This ensures the bearings are lubricated from the very first rotation.
• Crank Engine Without Firing: After full installation, disable the fuel system (e.g., by disconnecting the injector wiring harness) and crank the engine for 15 seconds. This will build full oil pressure throughout the system before the engine starts and the turbo spins at high speed.
• Check and Clean Intake System: The previous turbo failure may have sent oil into the intercooler and pipework. All intake components must be removed and thoroughly cleaned to prevent this oil being ingested by the engine, which can cause damage.
• Use All New Gaskets and Fixings: Do not reuse any of the old gaskets, copper washers, or studs. Use the complete fitting kit supplied to ensure there are no oil or exhaust leaks.
• Perform an Oil and Filter Change: Always fit a new turbo using fresh, manufacturer-specified engine oil and a new, high-quality oil filter to remove any contaminants from the old unit’s failure.

Alternative part numbers

This turbo is also referenced by:

• 763647-5021s — GT17V Turbocharger OE 763647-5021s (Ford Mondeo 2.0 TDCi MK4, QXBA/AZBA, 140hp)

Frequently asked questions