Description

This listing is for a reconditioned Garrett GT18V turbocharger, specifically designed for the Mercedes E270 CDI with the OM647 engine, produced between 2002 and 2008. We provide a fully reconditioned unit, ensuring your vehicle regains its original performance and efficiency, backed by Gap Turbos’ expertise since 1986.

The Garrett GT18V is a variable nozzle turbine (VNT) turbocharger, a common fitment across the Mercedes E270 CDI range. This particular unit is suitable for models with the 177HP OM647 diesel engine. Common failure modes for this turbocharger family often include the variable vane mechanism seizing due to carbon build-up from exhaust gases. This can lead to over-boosting or under-boosting, causing reduced engine power and activating ‘limp mode’. The VNT mechanism, crucial for efficient boost control across the RPM range, becomes restricted, impacting drivability. Electronic actuator faults are also prevalent, preventing correct vane operation even if the mechanism itself is free. These actuators are complex and sensitive to voltage fluctuations or internal component wear. Furthermore, like all turbos, the central housing rotating assembly (CHRA) bearings can wear over time due to insufficient lubrication or contamination, leading to excessive shaft play, oil leaks into the exhaust or intake system, and ultimately, catastrophic turbocharger failure.

At Gap Turbos, our reconditioning process involves a complete strip-down and thorough inspection of the core unit. Every component is meticulously cleaned and assessed. All worn or damaged parts, including bearings, seals, and the VNT mechanism, are replaced with new, high-quality, OEM-specification components. The compressor and turbine wheels are precisely balanced to OEM specifications, crucial for high-speed operation. The electronic actuator is rigorously tested, recalibrated, and, if necessary, replaced to ensure precise control over boost pressure throughout the engine’s operating range. Beyond reconditioned units, we also offer new exchange turbos for immediate dispatch, a professional fitting service here at our Birmingham workshop, and comprehensive DPF/catalytic converter cleaning services to address common underlying issues that can prematurely cause turbo failure.

What this turbocharger fits

• Vehicle: Mercedes E270 CDI
• Engine Code: OM647
• Horsepower: 177 HP
• Year Range: 2002 – 2008
• Fuel Type: Diesel
• OEM Part Number: A6110960899
• Alternative Part Numbers: 709836-5004s

We meticulously match each reconditioned turbocharger to its specific application to guarantee compatibility and optimal performance. All our reconditioned units come with a comprehensive warranty for peace of mind. For a precise quote, current stock availability, or to discuss your specific requirements, please contact Gap Turbos directly.

Specifications

Vehicle fitment

• Mercedes E270 CDI

Common faults & troubleshooting

[‘* Lack of power or poor acceleration: Often indicates a seized variable vane mechanism or a faulty electronic actuator preventing correct boost delivery.’, ‘* Whining or whistling noise from the engine bay: Suggests internal bearing wear in the turbocharger, leading to excessive shaft play.’, ‘* Excessive blue or black smoke from the exhaust: Blue smoke points to oil burning due to worn turbo seals, while black smoke can indicate overfuelling or insufficient air from a failing turbo.’, “* Engine in ‘limp mode’ with fault codes (e.g., P0234, P0299): Typically a sign of over-boost or under-boost conditions, frequently caused by VNT mechanism issues or actuator malfunctions.”, ‘* Oil leaks around the turbocharger housing: Can be due to failed oil seals within the CHRA or blockages in the oil return line, causing pressure build-up.’]

Fitting notes for this unit

[‘* Always replace the turbocharger oil feed pipe and drain pipe gaskets to prevent oil leaks and ensure proper lubrication.’, ‘* Ensure the engine oil and oil filter are changed using the correct specification oil prior to fitting the new turbocharger to prevent contamination.’, ‘* Prime the new turbocharger with clean engine oil before the first start; manually rotate the compressor wheel to distribute oil.’, ‘* Check and clear all intake and intercooler pipework for debris or oil residue, as these can cause immediate damage to the new turbo.’, ‘* Inspect the exhaust system, particularly the DPF/catalytic converter, for blockages, which can create back pressure and damage the new turbo.’, “* Torque all turbocharger mounting bolts and V-band clamps to the manufacturer’s specified settings to ensure a secure, leak-free installation.”]

Alternative part numbers

This turbo is also referenced by:

• 709836-5004s — GT18V Turbocharger OE 709836-5004s (Mercedes E270 CDI, OM647, 177hp)

Frequently asked questions