Bosch Diesel Service - authorised trademark

Bosch Diesel Service - Middelburg

Diesel fuel injection & turbocharger specialists

A Bosch Diesel Service accredited workshop, operated by Van Rooyen Diesel. The authorised partner for Bosch diesel-component warranty work, with genuine Bosch test benches.

Get a quote View FAQ

Bosch Diesel Service failure diagnosis

Est. 1998B-BBEE Level 1Bosch Accredited25+ Staff

Our services

Precision diesel engineering

From mechanical injection pumps to modern common rail and turbochargers, every job is tested on genuine Bosch equipment and backed by a 6-month workmanship guarantee and a 12-month national parts warranty.

Injection pumps

Mechanical Inline Pump Repair & Calibration

Repair and test-bench calibration of mechanical inline injection pumps, including the Bosch P7100 and conventional...

Mechanical Rotary / Distributor Pump Repair

Repair and calibration of mechanical rotary and distributor pumps - Bosch VE, Lucas/CAV DPA and DP200, and Stanadyne...

Electronic Distributor Pump Repair (VP/VE-EDC)

Repair of electronically controlled distributor pumps - Bosch VP44, VP30, and VE-EDC - including electronic actuator...

Common rail

Common Rail Diagnostics & Repair

Diagnosis and repair of common rail systems across Bosch, Delphi, Denso, and Siemens/VDO, using Bosch test-bench...

Common Rail Pump Repair (CP)

Repair and testing of high-pressure common rail pumps - Bosch CP1, CP3, and CP4, Denso HP3 and HP4, Delphi, and Siemens...

Injectors

Common Rail Injector Testing & Repair (CRI/CRIN)

Testing and repair of solenoid and piezo common rail injectors (CRI/CRIN) across all major makes, with Bosch...

Unit Injector (UIS) & Unit Pump (UPS) Service

Testing and repair of unit injectors and unit pumps (UIS/UPS) - Volvo, VW, and Audi EUI, and Scania systems - for...

HEUI Injector Service

Service of hydraulically actuated electronically controlled unit injectors (HEUI) used on CAT and Navistar diesel...

Nozzle Testing & Calibration

Injector nozzle testing and calibration for mechanical and conventional injectors, restoring correct spray pattern and...

Diagnostics & control

Electronic Diesel Control (EDC) Diagnostics

ECU and EDC fault diagnosis using Bosch on-vehicle diagnostic equipment, resolving engine management and fuel-system...

Fuel Rail Pressure Testing

High-pressure fuel rail and regulator testing to diagnose pressure faults, poor starting, and power loss in common rail...

Governor Testing & Adjustment

Mechanical pump governor calibration and adjustment on the test bench, restoring correct idle, cut-off, and...

Transfer Pump Testing

Testing of lift and transfer pumps that feed the injection system, diagnosing low-pressure supply faults that cause...

Glow Plug & Cold-Start Diagnostics

Diagnosis and repair of glow plug and cold-start systems to resolve hard starting in cold conditions.

Turbochargers

Turbocharger Repair & Overhaul

Repair, overhaul, and balancing of turbochargers across all OE brands. VR Diesel is an authorised OE turbocharger...

Turbocharger Supply (OE Brands)

Supply of OE-brand turbochargers by direct import, cutting out the middleman for competitive pricing across passenger...

Variable Geometry (VGT/VNT) Actuator Testing

Testing and calibration of variable-geometry turbocharger actuators to restore correct boost control and resolve...

Emissions

Diesel Particulate Filter (DPF) Service

DPF cleaning, forced regeneration, and diagnostics to resolve blocked-filter warnings, poor performance, and failed...

EGR Valve Service

EGR valve testing, cleaning, and replacement to resolve exhaust gas recirculation faults, rough running, and emissions...

AdBlue / SCR System Service

Service and diagnostics of AdBlue and SCR dosing systems to resolve dosing faults, warnings, and derate conditions on...

Fuel system

Diesel Fuel System Cleaning

Complete diesel fuel system cleaning and performance testing to remove contamination and restore fuel delivery and...

Industries we serve

By sector

Mining

Keep haul trucks and loaders moving - fast injection and turbo turnaround.

Agriculture

Get tractors and harvesters back in the field before the season slips.

Energy

Keep standby and continuous power reliable when it matters most.

Marine

Reliable injection and turbo service for commercial and leisure vessels.

Transport

Minimise downtime for trucks and light-commercial fleets.

Construction

On-site support to get standing plant and earthmovers running again.

4x4

Restore power, economy, and reliability for overland and off-road diesels.

Genuine Bosch equipment

Tested on the same benches Bosch specifies

Bosch EPS 708Bosch EPS 205Bosch EPS 815Bosch ESI[tronic] + KTS

Need a diesel repair or a quote?

Call us on 079 897 7624 or request a quote online.