Bosch 0445110264 CRI Injector – The Precision That Powers The OM646

Some Bosch part numbers are global. Others are regional. The 0445110264 is European through and through - the injector that keeps Mercedes-Benz vans and passenger cars moving across the autobahns of Germany, the winding roads of Tuscany, and the motorways of the UK.

This is the CRI 2-16 common rail injector for the OM646 engine family - a powerplant that has powered millions of Mercedes-Benz vehicles across two decades. If you've driven a Mercedes Vito, Viano, or C-Class diesel from the mid-2000s, you've likely experienced the 0445110264 at work - metering fuel with Bosch's characteristic precision, cylinder after cylinder, mile after mile.

 

The 0445110264 belongs to Bosch's CRI (Common Rail Injector) 2-16 family - a generation of solenoid-actuated injectors that represented a significant leap forward in diesel injection technology.

What makes the CRI 2-16 different:

Solenoid-actuated - an electromagnetic actuator controls the opening and closing of the injector needle, allowing for precise control over injection timing and duration

Hydraulic servo system - uses fuel pressure to amplify the solenoid's force, enabling rapid needle opening even at rail pressures exceeding 1,600 bar

Two-spring design - provides precise control over the needle lift, ensuring consistent injection characteristics across the injector's service life

The CRI 2-16 was Bosch's answer to the growing demand for cleaner, more efficient diesel engines in the early 2000s. It delivered injection pressures that were unprecedented for the time, enabling the OM646 to meet Euro 4 emission standards while maintaining the power and torque that Mercedes-Benz customers expected.

 

The 0445110264 is the Bosch new production number for an injector that carries multiple identities:

Number Type	Part Number
Bosch New	0445110264, 0 445 110 264
Bosch Exchange	0986435115
Mercedes-Benz OEM	A6460700487, 6460700487

Primary vehicle applications:

Model	Years	Engine	Power
Mercedes Vito 109 CDI	2003–2006	OM646.983	65 kW (87 hp)
Mercedes Vito 111 CDI	2003–2010	OM646.982	80 kW (107 hp)
Mercedes Vito 115 CDI	2003–2010	OM646.982	110 kW (148 hp)
Mercedes Viano	2003–2010	OM646	Various
Mercedes C-Class	2003–2006	OM646	Various

The OM646 engine family - a 2.1-liter, 4-cylinder, 16-valve common rail diesel - was one of Mercedes-Benz's most successful diesel platforms. It powered the W639 Vito and Viano vans, as well as the W203 C-Class and other models. The 0445110264 was the injector that made it all possible.

 

OEM cross-reference: A6460700487

The Mercedes-Benz OEM number A6460700487 is the number you'll find in the dealership parts catalog. The Bosch number 0445110264 is what's actually stamped on the injector. Both point to the same component.

The exchange number: 0986435115

Bosch's exchange program offers remanufactured injectors that have been restored to OEM specifications. The 0986435115 is the exchange number for this injector - a cost-effective alternative to a new unit, with the same Bosch quality assurance.

The control valve: F00VC01328

The injector's internal control valve assembly is identified as F00VC01328 - a component that can be replaced separately during injector overhaul.

 

The 0445110264 operates within a high-pressure common rail system. Fuel is pressurized by a high-pressure pump and stored in a common rail accumulator at pressures up to 1,600 bar (23,000 psi) . The injector's solenoid opens to allow high-pressure fuel to flow through the nozzle, atomizing it into a fine mist for combustion.

What this means in practice:

Precise fuel metering - the ECU controls injection timing and duration with millisecond accuracy

Multiple injections - the system can deliver pilot, main, and post injections in a single combustion cycle

Reduced emissions - precise control over the combustion process reduces NOx and particulate formation

Improved fuel economy - every drop of fuel is used efficiently

 

Common rail injectors operate under extreme conditions. The 0445110264's internal components - the solenoid, the control valve, the needle and nozzle - are subjected to millions of cycles and pressures exceeding 1,600 bar.

Signs that the 0445110264 needs replacement:

Rough idle - uneven fuel delivery between cylinders causes the engine to shake

Loss of power - reduced fuel flow under load

Increased fuel consumption - worn injectors deliver fuel inefficiently

Excessive smoke - incomplete combustion from poor atomization

Hard starting - insufficient fuel pressure at cranking speeds

Common failure modes:

Solenoid failure - the electromagnetic actuator loses its magnetic properties

Control valve wear - the valve no longer seals properly, causing internal leakage

Nozzle erosion - the spray holes enlarge or deform, degrading the spray pattern

Needle binding - contaminants cause the needle to stick in the nozzle body

 

Injector replacement on the OM646 requires attention to detail:

Depressurize the fuel system - common rail systems operate at pressures that can cause serious injury

Remove the injector - using the correct extraction tool for the OM646

Clean the injector bore - remove any carbon deposits or debris

Replace all seals and copper washers - these are single-use components

Install the new injector - with the correct torque specification

Code the injector to the ECU - each injector has unique calibration characteristics; the ECU must be updated with the injector's IMA code

Critical note: Coding is not optional. The OM646's ECU uses the injector's individual calibration code to compensate for manufacturing tolerances. If coding is skipped, the engine will run poorly, with rough idle, increased smoke, and reduced power.

 

Q1: What's the difference between 0445110264 and 0986435115?
They're the same injector. 0445110264 is the Bosch new production number; 0986435115 is the Bosch exchange (remanufactured) number. The exchange version has been remanufactured by Bosch to OEM specifications and is a cost-effective alternative to a new unit.

Q2: What engine does the 0445110264 fit?
It is engineered for the Mercedes-Benz OM646 engine family - a 2.1-liter, 4-cylinder common rail diesel found in the Vito (W639), Viano (W639), and C-Class (W203) from approximately 2003 to 2010. It covers power outputs from 65 kW (87 hp) to 110 kW (148 hp).

Q3: What's the Mercedes-Benz OEM number for this injector?
The OEM number is A6460700487 (also listed as 6460700487). This is the number you'll find in the Mercedes-Benz parts catalog. The Bosch number 0445110264 is what's actually on the injector.

Q4: What are the warning signs that my injector is failing?
Common symptoms include rough idle, loss of power under load, increased fuel consumption, excessive black or white smoke, and hard starting. Injectors experiencing these issues should be diagnosed promptly - a failing injector can cause damage to other components if left unaddressed.

Q5: Is coding required after installation?
Yes. Each injector has unique calibration characteristics, and the ECU must be updated with the injector's IMA (Injector Manufacturer Adjustment) code. If coding is skipped, the engine will run poorly with rough idle, increased smoke, and reduced power. Always use the appropriate diagnostic tool to enter the calibration data.

Q6: What's the warranty on this injector?
This injector comes with a warranty that reflects the manufacturer's quality standards.