0445110137
BOSCH 0445110137: Mercedes OM646 A6460700187
A6460700187, A6460700287, A6470700187, A6470700087, 6460700187F00VC01328DLLA153P12461600 bar peak rail pressureProduct Overview
The BOSCH 0445110137 is a complete injector assembly for Mercedes-Benz OM646 engine family - the second-generation CRI2 solenoid-actuated common rail fuel system used across the Vito (W639), Viano (W639), E-Class (W211), C-Class (W203/W204), and Sprinter (T1N). The F00VC01328 control valve operates via a precision solenoid with 3-6 micron clearance, regulating fuel flow for stable multi-pulse injection at up to 1600 bar peak rail pressure. The OE nozzle DLLA153P1246 (internal Bosch code 0433171788) is a multi-hole P-type nozzle delivering fine fuel atomisation for clean combustion. Compatible with OM646 (2.1L, 60-90 kW, Vito/Viano/W211) and OM647 (2.7L, 75-110 kW, Sprinter T1N) variants. Mercedes OE A6460700187 (also A6460700287 for sister 0445110139, A6470700187 for Sprinter 2.7L). Bosch aftermarket exchange 0986435113 (also 0986435109 / 0986435114 for sister SKUs).
Verify engine code OM646 on the block and OE number A6460700187 on the injector body before ordering. 0445110137 shares the F00VC01328 control-valve group with sister SKUs 0445110138, 0445110139, 0445110140, 0445110191, 0445110192, 0445110263, 0445110264 but each carries a unique IMA calibration code - NOT interchangeable without ECU re-coding.
Vehicle & Engine Fitment
| Vehicle | Engine | Years |
|---|---|---|
| Mercedes-Benz Vito (W639) | OM646 / OM647 / OM648 | 2003-2014 |
| Mercedes-Benz Viano (W639) | OM646 / OM647 / OM648 | 2003-2014 |
| Mercedes-Benz E-Class (W211) | OM646 / OM647 / OM648 | 2002-2009 |
| Mercedes-Benz Sprinter (T1N) | OM646 / OM647 / OM648 | 2000-2006 |
Technical Specifications
| Specification | Value |
|---|---|
| OEM Number | A6460700187, A6460700287, A6470700187, A6470700087 |
| Engine Family | OM646.982 |
| Control ValveCore Spec | |
| Nozzle CodeCore Spec | 🔗 Shared Nozzle (2 assemblies):0445110138 |
| Internal Nozzle P/NCore Spec | 🔗 Shared Nozzle (2 assemblies):0445110138 |
| Injection System | Common Rail Diesel (CRI2) |
| Emission Standard | Euro 4 |
| Material | High-speed Steel |
| Warranty | 12 months |
| Net Weight | 600 g |
| Operating PressureCore Spec | |
| Magnet Assembly | F00VC30326 |
| Seal Ring Kit | F00VC99002 |
Installation Tips
- Depressurise fuel system: remove fuel pump fuse, crank engine until it stalls, disconnect battery negative.
- Remove engine cover; disconnect injector electrical connectors - tag each with cylinder number (1-4).
- Remove HP fuel rail: use correct flare nut wrenches on banjo bolts.
- Remove the two hold-down bolts per injector (OM646/OM647 uses TWO bolts, not one).
- Extract old injector; inspect bore for carbon deposits or corrosion; check nozzle tip for Black Death carbon buildup.
- Check solenoid resistance with multimeter: normal 0.5-2.0 Ohm cold; open circuit or > 3 Ohm = replace.
- Fit new copper washer (top) and O-ring (bottom) on new 0445110137.
- Apply thread sealant (Loctite 243) to hold-down bolt threads.
- Insert injector straight; install clamp; hand-tighten two bolts evenly.
- Torque hold-down bolts: Stage 1 = 7 N·m; Stage 2 = 90° angle turn (always use new stretch bolts). High-pressure line union nuts: 25-30 N·m.
- WARNING Two bolts must be tightened evenly - tilt > 0.5 mm cracks the ceramic nozzle tip.
- Reconnect HP rail banjo bolts, then injector harness; ensure connector seals are seated.
- Prime fuel system: hand pump 3x, crank 5 sec, check for leaks at banjo joints.
- With Star Diagnostic (SDS): Motor Electronics -> Injection -> Code Cylinders -> enter 4-digit IMA code.
- Clear fault codes; road test 10-15 minutes; monitor for rough idle, MIL, or black smoke.
Frequently Asked Questions
What P-codes does a faulty 0445110137 trigger on the OM646 / OM647 engine?
Common fault codes: P0201-P0204 (cylinder 1-4 injector circuit faults), P0300-P0304 (random misfire from worn valve or Black Death carbon buildup), and P0600-P0605 (ECU internal faults from voltage fluctuation). The OM646/OM647 is known for 'Black Death' - carbon buildup on the nozzle tip from short-distance cycles. This causes white smoke at idle and black smoke under load. Diagnosis: remove injector and inspect nozzle tip - if carbon is visible, replace as a set.
How do I confirm 0445110137 is the right part for my Mercedes Vito 115 CDI (W639)?
Verify: (1) Engine code - look for 'OM 646.982' stamped on the engine block; (2) OE part number - 0445110137 stamped on the injector body; (3) Connector - OM646/OM647 uses a 2-pin push-fit Deutsch connector. Cross-reference: A6460700187 = OM646 (2.1L Vito/Viano/E-Class); A6470700187 = OM647 (2.7L Sprinter T1N). Both use the same 0445110137 physical injector but different OE stampings.
0445110137 vs 0445110138 - what is the difference?
Both share F00VC01328 valve and nozzle 0433171788. 0445110137 = primary OE part; 0445110138 = alternative exchange number. Interchangeable mechanically - but the IMA code stamped on the solenoid body must match the ECU's expected value for that specific vehicle application.
What is the difference between OM646 and OM647 - can I use the wrong injector?
OM646 (2.1L, 60-90 kW) and OM647 (2.7L, 75-110 kW) use the same 0445110137 physical injector but different IMA calibration codes. OM647 (Sprinter T1N) operates at slightly higher rail pressure (~1350 bar vs ~1200 bar for OM646). Installing from one to the other may work mechanically but will cause fuel metering errors - the ECU will flag a fault until it learns the new injector.
What torque spec should I use for injector hold-down bolts on OM646 / OM647?
Mercedes-Benz procedure: (1) Apply thread sealant; (2) Pre-torque to 7 N·m (criss-cross); (3) Final stage: turn a further 90°(torque-to-yield - always use new stretch bolts; the 25-30 N·m figure applies to the high-pressure line union nuts, a different fastener). WARNING OM646/OM647 uses TWO hold-down bolts per injector - tighten evenly to avoid tilting the injector body. Tilt > 0.5 mm contacts the piston and cracks the ceramic tip.
Does the 0445110137 require ECU coding after installation on the Vito / Sprinter?
Yes - mandatory on all OM646/OM647 engines. Use Star Diagnostic (SDS), HHT, or Autel with DAS/Xentry. Navigate to Motor Electronics -> Injection -> Code Cylinders -> enter the 4-digit IMA code from the new injector label. Without coding, the ECU stores P0300 for 10-15 minutes. Workshop time: 45-90 minutes including road test.
What is the warranty on 0445110137 and what voids it?
Standard warranty: 12 months from invoice date. Covers: solenoid open-circuit, control valve seizure, nozzle blockage. Voided by: (1) cracked nozzle tip from tilted insertion; (2) Black Death carbon damage; (3) fuel contamination; (4) missing ECU coding; (5) bio-diesel above B7. Keep Star Diagnostic coding report as warranty evidence.
0445110137 vs 0445110140 - are they interchangeable?
No - 0445110140 is for the OM648 engine family (3.0L, W211 E320 CDI post-2005), which uses a different injector design with updated solenoid and different rail pressure. 0445110137 is NOT interchangeable with OM648 injectors. Verify engine code on the block.
What is 'Black Death' on OM646/OM647 and how does it affect injector selection?
Black Death is carbon buildup on the injector nozzle tip from repeated short journeys that never fully heat the combustion chamber. Symptoms: white smoke at cold idle, black smoke under load, then P0300. Prevention: occasional 30+ minute motorway runs. If Black Death is present, replace all 4 injectors as a set - individual replacement won't resolve the issue. 0445110137 will restore proper spray pattern if the engine is otherwise healthy.
Diagnostic Trouble Codes & Fault Protocols
Common diagnostic trouble codes (DTCs) triggered when this common rail injector experiences wear, circuit faults, or calibration drift:
Fuel Rail / System Pressure Too Low
Excessive internal backleak from worn control valve seats drops common rail pressure below target under engine load.
Injector Circuit Malfunction / Open Circuit
Solenoid coil resistance drift (0.2-0.5 Ω) or piezo stack degradation triggers driver stage shutdown on affected cylinders.
Cylinder Misfire & Balancing Deviation
Carbon-clogged nozzle spray holes or missing IMA calibration causes uneven cylinder contribution. Recode ECM and verify washer seating.
Fuel Rail / System Pressure Too High
Spill line backpressure or stuck metering valve prevents rail depressurization, creating overpressure risks under load.
Cross-Reference & Compatibility
Sister parts, same-platform variants, and known incompatibilities.
Technical Diagnostic & Service Protocols
Authoritative field procedures, diagnostic testing thresholds, and service SOPs for this assembly.