This Garrett GTC1244VZ turbocharger is a direct-fit unit for the 1.6 e‑HDI (DV6) diesel engines used across several Stellantis passenger cars. The unit is commonly referenced under OEM/PSA numbers and is a popular replacement for workshops and experienced DIY mechanics who search by part number. Installing a properly serviced turbo restores boost response, reduces smoke and recovers lost torque.

Compatibility

• Citroën C4
• Citroën C4 II
• Citroën C4 Picasso
• Peugeot 3008 I
• Peugeot 308
• Peugeot 5008 I
• Engine: 1.6 e-HDi (DV6 family) — verify engine code when matching parts by number

Function And Typical Failure Modes

The turbocharger increases engine power and efficiency by compressing intake air to deliver more oxygen to the combustion chamber. Common causes of turbo failure include oil starvation or contamination, foreign object ingestion from the intake or intercooler, excessive soot build-up from EGR systems, worn bearings, and actuator/wastegate faults. Regular oil and filter service, clean intake path and timely maintenance significantly extend turbo life.

How To Replace

1. Allow Engine To Cool And Work Safely. Disconnect battery and follow general safety precautions.
2. Remove Intake And Downpipe To Gain Access To Turbocharger.
3. Carefully Disconnect Oil Feed And Return Lines — Cap Lines To Prevent Contamination.
4. Unbolt Turbo From Exhaust Manifold And Remove Unit Together With Any Actuator Connections.
5. Install New Turbo Using New Gaskets And Seals; Ensure Correct Alignment And That Feed/Return Lines Are Free Of Blockage.
6. Prime Turbo With Engine Oil If Possible, Refit All Components, Refill Engine Oil And Filter If Contaminated.
7. Start Engine, Idle Until Oil Pressure Is Stable, Check For Leaks, Then Carry Out A Controlled Test Drive.

Installation Recommendations

• Always Use New Gaskets And Sealing Rings On Oil And Coolant Connections.
• Flush Or Replace Oil Feed And Return Lines If Contaminated Or Restricted.
• Change Engine Oil And Oil Filter Before Or Immediately After Installation To Avoid Early Damage.
• Inspect Intercooler, Intake Piping And Air Filter For Debris Or Oil Contamination.
• Do Not Rev Engine Immediately After Installation; Allow Oil Pressure To Build Up First.
• Tighten Fasteners To Manufacturer Torque Specifications And Use Correct Bolt Sequences.

Why This Part Is Often Searched By Part Number

Turbochargers for the 1.6 e‑HDI are frequently sold and replaced under Garrett and OEM PSA reference numbers (GTC1244VZ, 9686120680, 0375P7, 0375P8). Workshops and DIY mechanics commonly look up these codes to ensure direct fitment and correct interchangeability.

Technical Information

• Manufacturer: Garrett
• Model: GTC1244VZ
• Product Codes: GTC1244VZ, 9686120680
• Other Numbers: 0375P7, 0375P8
• Removed Mileage: 88,000 km

Description

Garrett turbo GTC1244VZ (reference 9686120680, 0375P7 / 0375P8) is a direct-fit replacement for the 1.6 e-HDI diesel engines used across several Citroën and Peugeot models. Designed to restore engine boost response, torque delivery and drivability, this turbocharger provides OE-compatible fitment and mounting points for a straightforward swap on compatible vehicles. Oil feed pipe is not included; reuse or replace the original oil feed/return lines and sealing gaskets during installation to ensure reliable lubrication and long service life.

Features & Benefits

• Direct replacement for OE-referenced turbochargers, designed for 1.6 e-HDI engines.
• High-quality Garrett manufacture for durable performance and precise balancing.
• Restores factory boost levels and driveability when replacing a worn or damaged turbo.
• Compatible with original mounting, sensor and actuator interfaces for easier installation.

Compatible Models

• Citroën C4 (including C4 II)
• Citroën C4 Picasso
• Peugeot 308
• Peugeot 3008 I
• Peugeot 5008 I

Installation And Replacement

Replacement of the turbocharger should be performed by a trained technician or an experienced DIY mechanic with the correct tools. Typical replacement steps:

• Allow the engine to cool completely. Relieve intake pressure and disconnect the battery if required by the vehicle service procedure.
• Remove intake and intercooler pipes to gain access to the turbocharger.
• Drain engine oil to avoid contamination when disconnecting oil feed and return lines. Note: Oil feed pipe is not included with this turbo—inspect and replace the pipe and seals if worn or blocked.
• Disconnect oil and coolant lines (if applicable), vacuum hoses and electrical connectors to sensors or actuators attached to the turbo.
• Unbolt the turbocharger from the exhaust manifold and downpipe, transfer any required brackets, sensors or actuators to the new unit if not supplied.
• Fit new gaskets and seals on all connections. Torque bolts to manufacturer specifications and verify correct alignment.
• Before first start, prime the turbo oil supply by cranking the engine with fuel/ignition disabled or by pre-filling the turbo oil gallery where possible to prevent dry start damage.
• Start the engine, idle until oil pressure is stable, check for oil/leakage and exhaust leaks, then perform a controlled test drive and recheck fasteners and connections.

Most Common Failure Causes

• Oil starvation or contaminated oil leading to bearing wear—often caused by overdue oil changes, clogged oil feed or return lines, or blocked oil filters.
• Carbon and soot buildup from EGR or poor combustion that restricts oil passages or fouls the turbine/compressor.
• Foreign object damage to the compressor or turbine wheels (ingestion from intake side or exhaust backflow).
• Boost leaks, failed actuator or vacuum lines causing over‑stress or incorrect turbo operation.
• Excessive thermal stress from repeated overheating or improper warm-up/cool-down habits.

Technical Information

• Manufacturer: Garrett
• Model: GTC1244VZ (for 1.6 e-HDI engines)
• Product Codes: GTC1244VZ, 9686120680, 0375P7, 0375P8
• Other Numbers: 0375P7 | 0375P8 | 9686120680
• Note: Oil Feed Pipe Is Not Included

Installation Recommendations

• Always replace oil and oil filter before and shortly after turbo replacement to remove contaminants.
• Inspect and, if necessary, replace oil feed and return pipes, seals and gasket sets to ensure unrestricted lubrication.
• Use manufacturer torque values and follow the vehicle service manual for sequence and tightening stages.
• Prime the turbo with oil prior to first start and avoid heavy engine load or high RPM for the first few minutes of operation.
• Check related systems (EGR, PCV, intercooler and intake piping) that can cause premature turbo deterioration if faulty.