Diesel Injector Repair & Testing in Pretoria.
Start with a Bosch EPS 205 bench test before buying replacements. NKD diagnoses and reconditions serviceable diesel injectors, supplies before-and-after reports, backs reconditioned units with a 6-month warranty, and offers free delivery anywhere in South Africa.

Automatic Bosch EPS 205 testing
Test reports document the work
Warranty on reconditioned injectors
Free delivery anywhere in South Africa
Test first. Repair where possible.
Hard starting, smoke and power loss do not automatically mean you need replacement injectors. NKD tests supported units before quoting so the recommendation is based on measured results.
- Hard starting
- Rough idle or misfire
- Loss of power
- Black smoke
- Unusual diesel knock
- High fuel consumption
Share the vehicle and symptoms
Send the make, model, year, engine, symptoms, quantity, location and an injector part number or photo.
Test before quoting
NKD bench-tests supported injectors and uses the measured results to recommend the next step.
Approve repair or replacement
Serviceable injectors can be reconditioned. If repair is not viable, NKD can check a sourced replacement option.
Retest and document
Reconditioned injectors are calibrated, retested and supplied with before-and-after test reports.
Warranty and return
Reconditioned injectors carry a 6-month warranty and can be returned through the nationwide courier service.
Repair, testing and replacement support
Bosch EPS 205 testing leads the process. NKD repairs supported, serviceable injectors and checks replacements when repair is not viable.
Diagnosis & Bench Testing
Automatic Bosch EPS 205 testing at pressures up to 1,800 bar, followed by a clear report before work is quoted.
- Spray, delivery and leak-back measurements
- Test before repair or replacement
- Before-work test report
Injector Repair & Reconditioning
Cleaning, inspection, serviceable component replacement, calibration and retesting for supported diesel injectors.
- Ultrasonic cleaning and inspection
- Repair where the injector is serviceable
- Calibration and after-work testing
Reports & Warranty
Measured before-and-after results document the work, with a 6-month warranty on reconditioned injectors.
- Before-and-after test reports
- 6-month warranty on reconditioned injectors
- New washers with reconditioned injectors
Replacement Injector Sourcing
If an injector cannot be repaired, NKD can check new, reconditioned or service-exchange options where available.
- Price and availability confirmed on request
- Part-number or photo fitment check
- Free nationwide delivery
What Our Customers Say
Real feedback from drivers and workshops across South Africa.
“The best service and attention to detail I have ever had from any service provider. Constantly updating me on progress and delivery was on time. Workmanship was 100% to my satisfaction — my Hilux has not run this well in a very long time.”
Hannes Swanepoel
“I had to trust a company I met through Google that's 500KM away from me with my crazy expensive injectors, and I am glad I went with my gut. The promptness deserves a standing ovation — I don't remember the last time my van rode so smooth. Thank you Patriska and NKD!”
Olebogeng Baartman
“Professional advice and repairs. Prompt service. Door-step delivery and pickup. A pleasure doing business with Nadia — thank you, keep it up!”
Roshan Sooklal
“They go out of their way to assist you. The turnaround time is quick and the job is done professionally. Will definitely use NKD Injectors again.”
Hein Steenkamp
“Excellent service received from Nadia and the team at NKD Injectors. Professional and very helpful — thank you guys.”
Shaun Bezuidenhout
“Fast, friendly service with good quality workmanship.”
Robert MacDonald
Start with a test and a clear answer
Send your vehicle, injector and symptom details. NKD will confirm whether the injector type is supported and explain how to get it to the Pretoria workshop.
Prefer to talk? Call +27 65 861 0876