Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) Diesel Injector
Cross-Reference & Technical Specs
Authoritative technical specifications, verified Bosch part numbers, control valve stamping codes, nozzle spray orifices, and hold-down tightening torque for the Mercedes-Benz M270 diesel engine family.
All Verified Part Numbers for Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo)
The following 5 common-rail injector assemblies are calibrated for this engine family. Click any SKU to view individual test bench flow curves, sister cross-references, and vehicle applications.
Bosch 0261520472 Common Rail Injector for Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) →
BOSCH CRIIntegrated Solenoid Quantity Control Valve (Y94)Nozzle Code: See Product DetailHigh-Speed Solenoid Actuated Inward-Opening Multi-Hole ValveNozzle Code: See Product DetailIntegrated Solenoid Quantity Control Valve (Flow Metering)Nozzle Code: See Product DetailIntegrated Solenoid Quantity Control Valve (Y94)Nozzle Code: See Product DetailIntegrated Solenoid Quantity Control Valve (Y94)Nozzle Code: See Product Detail| Part Number (SKU) | Primary OE Reference | Control Valve | Nozzle Code |
|---|---|---|---|
| A2740700501, A2740700401, A2740700101 | Integrated Solenoid Quantity Control Valve (Y94) | See Product Detail | |
| 2700700587, A2700700487, 0261500065 | High-Speed Solenoid Actuated Inward-Opening Multi-Hole Valve | See Product Detail | |
| 2740700501, A2740700401, 0261520215 | Integrated Solenoid Quantity Control Valve (Flow Metering) | See Product Detail | |
| 2740901429, A2740900050, 2740900050 | Integrated Solenoid Quantity Control Valve (Y94) | See Product Detail | |
| A2700700101, 2700700101 | Integrated Solenoid Quantity Control Valve (Y94) | See Product Detail |
Verified Vehicle Compatibility
| Make / Manufacturer | Vehicle Model & Platform | Engine Specification | Model Years |
|---|---|---|---|
| Mercedes-Benz | C-Class W205 (C200 / C300) | Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) | 2014-2020 |
| Mercedes-Benz | E-Class W213 (E200 / E300) | Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) | 2016-2020 |
| Mercedes-Benz | GLC-Class X253 (GLC260 / GLC300) | Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) | 2015-2020 |
| Mercedes-Benz | CLA-Class C117 (CLA250) | Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) | 2013-2019 |
| Mercedes-Benz | C200 W205 2.0T | Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) | 2014-2018 |
| Mercedes-Benz | C300 W205 2.0T | Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) | 2015-2021 |
| Mercedes-Benz | E200 W213 2.0T | Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) | 2016-2021 |
| Mercedes-Benz | C300 W205 | Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) | 2015-2021 |
| Mercedes-Benz | E300 W213 | Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) | 2017-2020 |
| Mercedes-Benz | GLC300 X253 | Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) | 2016-2020 |
Installation, Tightening Torque & Re-torque Protocol
Strict torque compliance is mandatory on Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) common-rail cylinder heads. Over-torquing stretches the injector body or strips the head clamping threads, while under-torquing allows combustion blow-by past the copper sealing washer:
- Hold-down clamp bolt: 10 N·m (cold state). Always clean the cylinder head recess with an injector seat reamer.
- High-pressure rail flare nut: 25-30 N·m using a dedicated 17 mm line wrench.
- Return leak-off banjo bolt: 9-12 N·m with fresh copper washers on both sides of the banjo union.
After fitting replacement injectors on Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo), generate or program the cylinder-specific IMA calibration code into the engine ECU using an OEM-level scan tool (Bosch KTS, Renault CLIP, or VAG-COM) to prevent cylinder power imbalance and rough idle.
Technical Diagnostics FAQ for Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo)
What DTC fault codes indicate a failing injector on Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo)?
The most frequent fault codes are P0201 through P0204 (Injector Circuit Malfunction on Cylinders 1-4), P2146/P2149 (Injector Group Supply Voltage Error), and P0087 (Fuel Rail Pressure Low due to excessive internal leak-off). Measure solenoid coil resistance across the pins (0.5-1.5 Ω) and perform a graduated-bottle dynamic leak-back test to pinpoint the leaking cylinder.
Can sister SKUs within the Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) family be interchanged?
Not unless explicitly confirmed on the vehicle build plate. While sister SKUs share the same physical outer envelope and Integrated Solenoid Quantity Control Valve (Y94) control valve, they differ in nozzle spray orifice angle and factory IMA flow calibration. Mixing sister SKUs on the same engine block can trigger rough idle, elevated exhaust gas temperatures (EGT), and MOT emissions failure.
Which specific Bosch injectors fit the Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) engine?
The verified genuine Bosch common-rail injectors engineered for the Mercedes-Benz M270 / M274 (1.6L & 2.0L BlueDIRECT Turbo) engine family are:
- Bosch 0261520472 Common Rail Injector → (OE: A2740700501, A2740700401, A2740700101, A2740700001) — Control Valve: Integrated Solenoid Quantity Control Valve (Y94),
- Bosch A2700700587 Common Rail Injector → (OE: 2700700587, A2700700487, 0261500065, 0261500066) — Control Valve: High-Speed Solenoid Actuated Inward-Opening Multi-Hole Valve,
- Bosch A2740700501 Common Rail Injector → (OE: 2740700501, A2740700401, 0261520215, 0261520216) — Control Valve: Integrated Solenoid Quantity Control Valve (Flow Metering),
- Bosch A2740901429 Common Rail Injector → (OE: 2740901429, A2740900050, 2740900050, A2740900650, 2740900650, 0261520215, HPP0021) —
- Bosch A2700700501 Common Rail Injector → (OE: A2700700101, 2700700101) —