> Professional service for Mercedes OM906 engines with express 24-hour diagnostics. We offer regeneration, repairs, and on-site parts with a warranty of up to 12 months. Check typical symptoms of damage and take advantage of our services throughout Poland. Express diagnostics 24h # Mercedes OM906 - service and repair Comprehensive service, regeneration, and bench tests for the Mercedes OM906/OM906LA engine. Door-to-door pickup throughout Poland, parts on-site, warranty up to 12 months. WIBAKO - professionally and on time. - Original parts - Dynamometer test report after repair - Short lead times - Technical support and replacement selection 24h initial quotation 12 months warranty 98% successful repairs 48h express mode [Call: +48 33 870 42 00](tel:+48338704200) - Typical applications: Mercedes Atego, Axor, Unimog, city buses Mercedes Citaro, municipal vehicles, crane and specialized bodies. - Supported machine brands: Mercedes-Benz, Fuso, Unimog, Terex, Faun, Multicar, and municipal bodies. - Most common services: fuel system diagnostics, turbocharger regeneration, cylinder head and cooling system repair, valve clearance adjustment, injector and pump replacement. ## Contact form ## Typical symptoms of Mercedes OM906 engine damage OM906 is a 6-cylinder inline unit, often operating under heavy loads in transport and municipal vehicles. Below are the most common symptoms that come to WIBAKO: ### Power loss Difficulty reaching operating RPM, sluggish response to the accelerator. Often caused by injectors, intake leaks, or a worn turbocharger. ### Excessive smoking Black, white, or blue smoke indicates an incorrect fuel dosage, boost problems, or worn piston rings. ### Unusual noises Knocking or rattling may indicate worn bearings, play in the timing system, or leaks at the injector. ### Vibrations and overheating Uneven operation, cabin shaking, rapid temperature rise - often the cooling system, viscous fan, or thermostat is to blame. ## What we do as part of the service ### Diagnostics & tests Pressure measurement, flow tests, test bench verification. ### Overhaul Replacement of rotating elements, seals, surface finishing. ### Calibration Precise adjustment of valves and controls. ### Upgrades Selection of replacements and adaptations. ### Door-to-door Pick-up and delivery throughout Poland. ### Warranty & report Test protocol and warranty up to 12 months. ## Scope of work for OM906 - Computer diagnostics and compression measurement - Turbocharger and injector regeneration - Cylinder head planning, replacement of the cylinder head gasket - Crankshaft grinding, replacement of bearings and rings - Seals, coolant and oil pumps, cooling system - Bench tests after repair and protocol Parts available immediately: gasket sets, water pumps, turbocharger repair kits, sensors, belts, and rollers. ## What the repair process looks like 1 ### Contact By phone or via the form. 2 ### Collection We arrange a courier; on-site disassembly possible. 3 ### Diagnostics Disassembly, measurements, cost estimate for approval. 4 ### Repair & test Assembly, calibration, test bench verification. ## Customer reviews **"Atego returned to work after 2 days."** Quick diagnosis of OM906 and injector replacement. No downtime in deliveries. - Krzysztof **"Complete overhaul with warranty."** The engine in the garbage truck got a second life, runs like new. - Tomasz **"Professional communication."** I received the estimate and deadlines immediately, and after the repair, a test protocol. - Michał ## FAQ - frequently asked questions - **Where to start?** The first step is to contact Łukasz, our coordinator for internal combustion engine repairs. You can call [+48 33 870 42 15](tel:+48338704215) or use the [contact form](https://wibako.com/contact) available on our website. - **How to deliver a combustion engine for repair?** You have several convenient options to choose from: - Personal delivery to our workshop. - Sending the engine by courier. - We can also arrange for a courier to ship the engine on a pallet from a specified location, and after the repair service is completed, the courier will deliver it back. - If you lack the appropriate facilities for disassembly or assembly, our mobile service can come to you and perform these services on-site. - **How does the engine repair process proceed?** Our engine overhaul process is thorough and transparent: - Detailed verification: the engine is disassembled down to the "last screw" and subjected to a detailed verification. - Cost estimate and schedule: we prepare a comprehensive cost estimate and determine the expected repair time. - Major overhaul: upon your acceptance of the terms, we proceed with a comprehensive repair, which is always a major overhaul, not just a replacement of individual components. - Testing and painting: The overhaul is completed when the engine successfully passes tests at the engine dynamometer station. The final stage is professional engine painting. - **What will you find in our offer?** We always strive to present you with the most beneficial solutions, therefore depending on the availability of spare parts you will receive: - An estimate for repair with original parts. - An estimate for repair with high-quality spare parts. - As an alternative, we can propose purchasing the same refurbished engine from our warehouse, which often significantly shortens the completion time. - **How long does it take to repair a combustion engine?** - The verification of your engine will take us 1-3 days from the moment of delivery. - You will receive an estimate for typical repairs within the next business day after the verification is completed. - The repair itself usually takes about 3-5 weeks. - **How do we test combustion engines?** Every refurbished engine undergoes rigorous testing on our engine dynamometer. The unit is loaded in a way that simulates operation in a construction machine. During the tests, we check key parameters such as: - Power and torque performance. - Coolant and oil temperature. - Oil pressure depending on its temperature. - Behavior and performance changes in relation to load. The entire test lasts on average from 12 to 24 hours, depending on the specifics of the engine. - **How can I be sure that the engine will work after the repair?** We care about the highest quality: - We perform repairs exclusively on high-quality parts, and assembly work is always in accordance with the specification of a given engine. - After the repair, the engine is thoroughly tested. The test result is always available in the form of a readable chart. - You will receive a 12-month warranty for each repair. In case of questions regarding assembly or operation, we encourage you to use the expert knowledge of our sales advisors through a phone call. - **Can I cancel the repair after receiving the estimate?** Yes, you can cancel the repair without any costs after receiving the estimate and before accepting it. - **How much does it cost to repair my engine?** The cost of repair depends on several factors: the engine model, the degree of its wear and tear, and the scale of damage. Very often we can only provide an approximate price range, based on our history of similar repairs. - **Do you overhaul industrial and special-machinery engines?** Yes, we overhaul combustion engines for construction, industrial and special machinery. Write to us via the [contact form](https://wibako.com/contact). - **Is an exchange engine possible?** If we have the same overhauled engine in stock, we can offer it as an alternative, which often significantly shortens the lead time. Write to us via the [contact form](https://wibako.com/contact). - **Do you remove the engine at the customer's site?** Yes, our mobile service can come to you and perform the engine removal and installation on-site. Write to us via the [contact form](https://wibako.com/contact). - **What does the warranty after overhaul look like?** Every engine overhaul comes with a 12-month warranty, and the engine is tested on the dynamometer after the work. Write to us via the [contact form](https://wibako.com/contact). ### Mercedes OM906 - valuation and date for today Tell us which machine your OM906 works in (Atego, Axor, Unimog, Citaro, municipal vehicle) and what the symptoms are. We will prepare a cost estimate, availability of parts, and the nearest date. Door-to-door pickup throughout Poland. WIBAKO - trusted engine service. [+48 33 870 42 00](tel:+48338704200) [biuro@wibako.pl](mailto:biuro@wibako.pl) [Formularz](https://wibako.com/contact) Published: 2025-10-07 --- Source: https://wibako.com/about-us/service/455-service-and-repair-of-the-mercedes-om906-engine Contact: +48338704200, biuro@wibako.pl