0432133795 — Technical Research
Bosch 0432133795 (OE 059130201F) nozzle-holder injector for the Audi/VW/Skoda 2.5 TDI V6 (AKE/BAU/BDH/BCZ/BDG/BFC/AYM). Fed by the VP44 distributor pump, not a common-rail unit — it carries a needle-lift sensor for cylinder-1 timing. Remanufactured, calibrated, 12-month warranty. Key symptoms: Rough idle / vibration; Hard starting; Loss of power / limp mode; Black smoke. Common failure modes: Internal wear / high back-leakage; Nozzle coking / poor spray pattern; Water-in-fuel corrosion.
Bosch 0432133795 2.5 TDI V6 Nozzle-Holder Injector (Audi A4/A6/A8, VW Passat, Skoda Superb)
Bosch 0432133795 (OE 059130201F) nozzle-holder injector for the Audi/VW/Skoda 2.5 TDI V6 (AKE/BAU/BDH/BCZ/BDG/BFC/AYM). Fed by the VP44 distributor pump, not a common-rail unit — it carries a needle-lift sensor for cylinder-1 timing. Remanufactured, calibrated, 12-month warranty. Key symptoms: Rough idle / vibration; Hard starting; Loss of power / limp mode; Black smoke. Common failure modes: Internal wear / high back-leakage; Nozzle coking / poor spray pattern; Water-in-fuel corrosion.
A leaking or out-of-calibration injector unbalances cylinder fuelling, felt as a shake at idle.
Excess back-leakage bleeds rail/line pressure during cranking, causing long or failed starts.
Out-of-range delivery or pressure deviation triggers a torque cut and limp home.
Poor atomisation or a dribbling nozzle over-fuels the cylinder.
Cylinder-specific injector, balance or fuel-metering fault codes are logged.
- InstallationNo electronic injector coding required — this is a mechanical nozzle-holder fed by the VP44 distributor pump; verify the cylinder-1 needle-lift sensor unit is fitted to No.1.
- InstallationRenew the copper combustion washer and leak-off seals; torque the clamp/nut to manufacturer spec.
- MisdiagnosisRead live back-leakage and per-cylinder contribution data to confirm the weak cylinder before removal.
- TestingBench-test across delivery and back-leakage points and verify spray pattern before refit.
- WarningConfirm fitment by OE number and engine code before ordering; injector sub-variants are not always interchangeable.
What is injector 0432133795?+
0432133795 is a Bosch pump-line-nozzle holder (with needle-lift sensor) diesel injector for the Audi / VW / Skoda 2.5 TDI V6. It is supplied remanufactured, bench-tested and calibrated to OEM specification.
Which vehicles use 0432133795?+
It is fitted to the Audi / VW / Skoda 2.5 TDI V6 — including Audi A4 (B6) 2.5 TDI V6 (AKE/BCZ/BDG/BFC); Audi A6 (C5) 2.5 TDI V6 (AKE/BAU/BDH/BCZ/BDG/BFC); Audi A8 (D2) 2.5 TDI V6 (AKE/BCZ); Volkswagen Passat (B5) 2.5 TDI V6 (AYM/AKE). Confirm fitment by OE number and engine code.
What type of injector is 0432133795?+
It is a Bosch Pump-Line-Nozzle Holder (with needle-lift sensor). Always confirm the OEM markings on the injector body before fitting.
Does 0432133795 need coding when fitted?+
No — it is a mechanical nozzle-holder fed by the VP44 distributor pump, so no electronic injector coding is needed. Ensure the needle-lift-sensor unit goes back on cylinder 1.
What are the symptoms of a failing 0432133795?+
Common signs are rough idle and vibration, hard starting, power loss or limp mode, black smoke and an engine-management light.
What causes these injectors to fail?+
Most failures come from poor fuel filtration, contamination and water in the fuel leading to wear, high back-leakage and nozzle coking. Fix the cause before fitting replacements.
Is a remanufactured 0432133795 as good as new?+
A properly remanufactured injector is stripped, fitted with new wear parts, reassembled and recalibrated on a common-rail test bench to OEM tolerances, then supplied with a warranty.
Should I replace one injector or the full set?+
Replace the confirmed faulty injector first. On high-mileage engines fitting a matched set reduces the chance of a repeat fault, but it is not mandatory if the others test within spec.
Do you bench-test the injector before dispatch?+
Yes. Every unit is tested for delivery, back-leakage and spray pattern on a calibrated common-rail tester before it leaves us.
Is delivery and warranty included?+
Yes — the price includes free UK delivery and a 12-month warranty.
Is 0432133795 a common-rail injector?+
No. The 2.5 TDI V6 (AKE etc.) uses a Bosch VP44 distributor pump feeding mechanical nozzle-holders. 0432133795 is the nozzle-holder assembly, with a needle-lift sensor on the cylinder-1 unit for timing.
Why does my 2.5 V6 TDI run rough or lack power?+
Worn nozzle-holders raise opening pressures and skew the spray, unbalancing the V6. Have each holder bench-tested; the cylinder-1 needle-lift sensor unit must be functional for correct injection timing.