Turbocharger for Mercedes Benz C300,C350e (2015-2020) 2.0L

Direct-Fit Replacement Turbocharger for 2015-2020 Mercedes Benz C-Class (W205)

What it Does: The replacement turbocharger restores factory boost pressure and engine responsiveness on the 2015-2020 C-Class by eliminating exhaust bypass leaks and journal bearing play.

The Stock Mercedes Benz C-Class Wastegate & Bearing Fatigue

On the W205 chassis fitted with the 2.0L M274 engine, the factory turbocharger frequently develops looseness at the wastegate flapper arm and internal bypass valve bushing. This mechanical play leads to exhaust gas blow-by, sluggish spool-up, and persistent underboost trouble codes such as P0299. Concurrently, thermal cycling degrades the factory journal bearings and dynamic oil seals, producing axial play, oil contamination in the charge air system, and reduced compressor efficiency.

The Engineering Solution

This replacement turbocharger is engineered to factory tolerances using high-nickel ductile iron for the turbine housing to resist thermal deformation under high exhaust gas temperatures. The center housing rotating assembly (CHRA) features upgraded journal and thrust bearings to maintain oil film stability under load. Each assembly undergoes rigorous high-speed VSR dynamic balancing to eliminate microscopic harmonics, while OE-spec oil feed and coolant connection ports guarantee a seamless bolt-on installation to original lines.

What's Included

• 1 × Complete Turbocharger Assembly
• 1 × Installation Accessory Hardware Kit

Technical Specifications

Compatibility

• 2015-2020 Mercedes Benz C300 2.0L L4 (W205)
• 2015-2020 Mercedes Benz C350e 2.0L L4 (W205)

Frequently Asked Questions & Fitment Warnings

Does this fit the W205 C-Class?

Yes, this is a direct fit for the 2015-2020 Mercedes Benz C-Class equipped with the M274 2.0L engine.

Do I need to replace the oil lines when installing this turbocharger?

Yes, clean or replace the oil feed and return lines and perform an engine oil and filter service prior to installation to prevent bearing starvation and contamination.

The Mercedes Benz Precision Standard

European direct-injected powertrains demand precise boost control to satisfy closed-loop engine management requirements. This turbocharger matches factory wastegate calibration and compressor maps, ensuring proper ECU target boost delivery without check engine lights or drivability faults.