Piezo injector repair: Bosch, Siemens (Continental), Denso across Ukraine
We repair removed piezo injectors by Bosch, Siemens VDO (Continental) and Denso: bench testing of the piezo stack, valve and nozzle, with a report and correction codes.
Price: from 2,000 UAH
When to bring it in
- Hard starting, especially when the engine is hot
- Rough idleThe engine misfires, vibrates, and the revs hunt.
- Higher fuel consumption with no change in driving style
- Black or white smoke from the exhaust
- Harsh, “tractor-like” engine runningA metallic knock appears that wasn't there before.
- Loss of power and acceleration
- Smell of unburnt fuel in the exhaust
- Fuel in the oilThe oil level rises and the oil gets thin. This is a serious sign: do not drive the car.
What's included
- Piezo stack capacitance and resistance check
- Bench test before and after repair
- Nozzle and valve group replacement
- ECU correction codes
About piezo injectors
Piezo injectors switch faster than solenoid ones and give more precise injection, but they are more sensitive to fuel quality. The valve group and nozzle wear most often; the piezo stack itself fails less frequently.
What we check
- Electrical parameters of the piezo stack
- Delivery in different modes and back-leak
- Sealing and spray pattern
If the piezo stack is healthy, the injector can be restored by replacing the valve and nozzle — much cheaper than a new one. If not, we tell you honestly before any repair.
Which injectors we accept
Bosch CRI3 (piezo), Siemens VDO / Continental for VAG, Ford, PSA, and Denso piezo for Toyota.
Estimate the cost
- Piezo injector repair2,000 UAH × 48,000 UAH
FAQ
Can Siemens piezo injectors be repaired?
Yes, if the piezo stack is healthy. We can tell after the bench test, before any repair starts.
How do I send parts for repair?
Remove the pump or injectors, plug the openings, pack them tightly and ship via Nova Poshta. Add a note with your phone number and car model. See the Delivery & payment page for details.
Do you give a warranty?
Yes, on the work done and installed parts. The terms are stated in the report.
When will I know the price?
After the bench test we call you to agree the price. We never start a repair without your approval.
Why check the turbocharger, injectors and pump together?
The turbocharger, injectors and high-pressure pump work as one system. Worn injectors flood the cylinders with excess fuel, which overloads the turbocharger. A worn pump contaminates the whole fuel system with metal shavings and damages the injectors. A faulty turbocharger delivers the wrong boost, so the engine runs with the wrong air-fuel balance. Repairing just one part often means the problem comes back, so we recommend having these units checked together: on the bench we find the root cause instead of only fixing the symptom.
What should I do if I notice signs of a fault?
Don't put it off: a small fault quickly becomes an expensive one. Don't rely on “miracle additives”: they don't restore worn parts. Don't drive if you hear grinding, see heavy smoke or the oil pressure drops. Get in touch: we'll advise you, test the removed parts on the bench and tell you honestly whether a repair is needed and which one.