Bosch 445110369 diesel injector for VW/Audi 2.0 TDI common rail

A Common Rail diesel injector relies on precise fuel metering to maintain combustion quality and stable engine running. Bosch injector 445110369 (0 986 435 166) should be matched to the correct 2.0 TDI engine and old-unit markings before fitment.

Part identification and catalog/cross-references

Bosch diesel injector reference 445110369 is the primary part number for this unit, and it is also listed under cross-reference 0 986 435 166 with the alternate format BOSCH 0 986 435 166. Treat these numbers as the identifier set when you’re matching the replacement to the failed injector on a VW/Audi 2.0 TDI.

This injector is designed for precise fuel metering within a Common Rail system, so the identification step isn’t paperwork—it’s how you avoid fitting the wrong spray and delivery characteristics to the engine. Even small deviations in injection quantity or spray pattern can lead to rough running, so the correct 445110369 / 0 986 435 166 match matters for drivability and combustion stability.

Vehicle compatibility with ONE table

Use the vehicle list below as the compatibility baseline for Bosch 445110369 / 0 986 435 166. Final confirmation still needs the vehicle’s engine code and the old injector’s markings, because 2.0 TDI applications can differ in injector specification.

Fitment checks and installation cautions

Before ordering or fitting Bosch 445110369, cross-check the reference number against the old injector, and verify the vehicle data and engine code using the vehicle compatibility information. The same injector family is also referenced as 0 986 435 166 and BOSCH 0 986 435 166, so confirm you’re matching the correct number set on the removed unit.

Common Rail injector fitment is unforgiving: the injector’s job is to deliver the correct fuel quantity and spray into the combustion chamber, and the description for 445110369 specifically flags that small differences in injection pressure, injection amount, or spray pattern can make the engine run unevenly. That’s why you should compare the old-unit markings and part numbers before installation rather than relying only on model-year assumptions.

During installation, keep the work clean and avoid mixing injector bodies or connectors between variants. If the old injector’s markings don’t align with 445110369 or the cross-reference 0 986 435 166, stop and re-check the engine code and injector reference before continuing.

Symptoms/selection notes for 2.0 TDI injector faults

When a Common Rail injector like Bosch 445110369 is out of specification, the common complaint pattern is unstable running tied to combustion quality—rough idle, uneven torque delivery, and drivability issues that track with injection quantity or spray pattern problems. The supplied product context also links injector deviations to poor cold start behaviour and degraded engine running, so selection accuracy directly affects the outcome.

Selection mistakes often show up as “it starts but doesn’t run right” rather than a hard no-start, because the engine can still fire with an incorrect injector but combustion quality suffers. If you’ve already confirmed the vehicle is in the listed 2.0 TDI range (for example Audi A3 8P1 2.0 TDI applications from 03/2006-08/2012), the next step is matching the injector reference: 445110369 versus 0 986 435 166 / BOSCH 0 986 435 166.

For diagnosis workflows, treat injector reference matching as part of the repair plan. If the old injector number doesn’t match 445110369, you’re not just swapping a component—you’re changing the fuel metering characteristics that the engine expects for that specific 2.0 TDI calibration.

Internal product link: Bosch 445110369 diesel injector

For the exact Bosch diesel injector reference 445110369 (also listed as 0 986 435 166), use this fitment reference when you’re verifying the replacement against the old unit: Bosch 445110369 diesel injector for VW/Audi 2.0 TDI.

Frequently Asked Questions