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Popular Mercedes B Class Diesel Engine Models
Compare used and reconditioned engine guide prices from trusted UK suppliers. Find replacement engine options by model, price and availability.
Available Engine Models
Starting guide prices for replacement engines
Quick Quotes
| Engine Code | CC | Size | Fuel | Number of Cylinders | Aspiration | Fits | Price (From) |
|---|---|---|---|---|---|---|---|
|
Mercedes
Mercedes B Class Diesel Engine OM651.930
Average rating:
5
4
-300
OM651.930
|
2.1 Litre | 2143 cc | Diesel | V TYPE 8 CYLINDER | Turbo | 2011-2018 | - |
|
Mercedes
Mercedes B Class Diesel Engine OM607.951(K9K)
Average rating:
5
4
-300
OM607.951(K9K)
|
1.5 Litre | 1461 cc | Diesel | V TYPE 8 CYLINDER | Turbo | 2013-2018 | - |
|
Mercedes
Mercedes B Class Diesel Engine OM651.930
Average rating:
5
4
-300
OM651.930
|
2.1 Litre | 2143 cc | Diesel | V TYPE 8 CYLINDER | Turbo | 2013-2018 | - |
|
Mercedes
Mercedes B Class Diesel Engine OM651.930
Average rating:
5
4
-300
OM651.930
|
2.1 Litre | 2143 cc | Diesel | V TYPE 8 CYLINDER | Turbo | 2014-2018 | - |
|
Mercedes
Mercedes B Class Diesel Engine OM651.930
Average rating:
5
4
-300
OM651.930
|
2.1 Litre | 2143 cc | Diesel | V TYPE 8 CYLINDER | Turbo | 2018-2018 | - |
|
Mercedes
Mercedes B Class Diesel Engine OM608.915(K9K)
Average rating:
5
4
-300
OM608.915(K9K)
|
1.5 Litre | 1461 cc | Diesel | V TYPE 8 CYLINDER | Turbo | 2018-2024 | - |
|
Mercedes
Mercedes B Class Diesel Engine OM608.915(K9K)
Average rating:
5
4
-300
OM608.915(K9K)
|
1.5 Litre | 1461 cc | Diesel | V TYPE 8 CYLINDER | Turbo | 2019-2024 | - |
Your Mercedes-Benz B Class Diesel engine options at a glance
Need a Mercedes-Benz B Class Diesel engine now? Start by confirming the exact engine, then compare used versus reconditioned condition, warranty, fitting and recovery as one complete repair decision.
- Reconditioned engine warranty: up to 3 years, depending on the engine and stated terms.
- Used engine warranty: up to 6 months, depending on the unit and stated terms.
- Recovery: available for non-running vehicles to the garage doorstep across mainland UK.
- Service choice: supply-only or supply-and-fit.
- Potential saving: up to 40% against comparable main-dealer routes where the job and specification allow.
How we narrow down the correct Mercedes-Benz B Class Diesel engine
The model name is only the starting point. A useful engine quote may require the registration, VIN, model year, fuel type, capacity, transmission and engine code. Those details help distinguish engines that share a capacity or outward appearance but use different sensors, ancillaries, emissions equipment, mounts or electronics. Ask the supplier to confirm the proposed unit against the vehicle before payment and dispatch. Also confirm whether the quote is for a bare engine, long engine or a unit supplied with selected ancillaries.
Powertrain checks for this Mercedes-Benz B Class Diesel
Because this page relates to a diesel application, the fitting discussion should also cover the systems around the engine. Turbocharger condition, injectors, EGR/DPF-related faults where fitted, lubrication and cooling problems can all influence why an engine failed or how safely a replacement can be installed.
A practical used-versus-reconditioned decision for the Mercedes-Benz B Class Diesel
A used engine is normally the budget-led route; a reconditioned engine is normally the longer-term route. That simple distinction is useful, but it is not the whole decision. A low-cost used unit can become poor value if it lacks suitable warranty or needs substantial additional parts, while a reconditioned engine only makes sense if the rest of the Mercedes-Benz B Class Diesel is worth the larger investment. Compare the complete written quote and expected ownership period. Used-engine warranties can extend to six months and reconditioned warranties to three years, depending on the specific product and conditions.
Choose the level of service you actually need
If your own mechanic is ready, request a supply-only Mercedes-Benz B Class Diesel engine and make sure the fitter understands the warranty conditions before installation. If you need a workshop as well, request supply-and-fit. If the vehicle is stranded, include recovery. BuyEngines has a mainland UK network of garages, so the enquiry can cover engine sourcing, transport and installation rather than leaving you to solve each part separately.
What changes the final Mercedes-Benz B Class Diesel engine replacement price?
Five things usually move the total: the exact engine required, whether it is used or reconditioned, what arrives with the unit, the installation work and logistics. Recovery, fluids, filters, timing components, turbo or fuel-system work and diagnostics may sit outside a headline engine price. That is why a 1 difference on an advert tells you almost nothing about value. Compare written quotations on the same scope. Depending on the job, BuyEngines customers can save up to 40% against comparable main-dealer costs while using independent engine and garage options.
What should you check before approving the engine?
Ask for the engine specification, condition description, warranty length, warranty exclusions and the list of included ancillaries in writing. Check whether the warranty requires new fluids, filters, timing components, oil cooler, turbo checks or other fitting steps. Keep the invoice and installation records. BuyEngines brings 35 years of automotive experience, state-of-the-art workshop facilities, highly qualified mechanics and a mainland UK garage network to the replacement process. Those credentials matter most when they are combined with a transparent quote and a technically correct match.
Three decisions that can change your Mercedes-Benz B Class Diesel engine quote
There is no single best engine route for every owner. Use the situation closest to yours as the starting point:
- If the vehicle also needs major gearbox, corrosion, electrical or suspension work, include those costs in the decision. An engine can be good value only when the rest of the vehicle still justifies the investment.
- If the car is away from your usual mechanic, use the mainland UK recovery and garage network as part of the comparison rather than limiting the search to the nearest engine seller.
- If the previous engine failed after overheating, oil loss or another external problem, make root-cause checks part of the fitting job. A replacement engine should not inherit the fault that damaged the old one.
For a premium car, documentation and workshop capability are part of the value of the repair, not optional extras. On a diesel model, clarify whether turbo and fuel-system components are included, transferred or tested separately.
How to get a Mercedes-Benz B Class Diesel engine quote
- Vehicle details: Registration first; VIN, engine code and derivative details where required for the Mercedes-Benz B Class Diesel.
- Condition and service: Choose used or reconditioned and tell us whether your own garage is fitting it.
- Decision: Review warranty, included parts, recovery/fitting costs and expected timescale as one package.
Providing these details at the start reduces back-and-forth and helps the engine, recovery and fitting requirements line up from the outset.
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Replacement Engine Help
Clear answers for UK drivers comparing used, reconditioned, supply-only and fitted replacement engine quotes.
Frequently asked questions about Mercedes-Benz B Class Diesel replacement engines
Could I save money compared with a main dealer on a Mercedes-Benz B Class Diesel engine?
Potentially. BuyEngines states savings of up to 40% against comparable main-dealer routes on suitable jobs. The exact saving varies, so compare like-for-like engine condition, warranty, labour, recovery and included parts.
Why is specialist fitting important for a Mercedes-Benz B Class Diesel?
Higher-value and higher-specification vehicles can have complex ancillaries, electronics and variant differences. A suitably equipped workshop helps ensure the replacement is correctly matched, installed and commissioned, and that warranty requirements are documented.
What should be checked when fitting a diesel Mercedes-Benz B Class Diesel engine?
The garage should consider the cause of the original failure and relevant systems around the engine, which may include turbo oil supply, injectors, cooling and emissions-related components. The exact checks depend on the engine and diagnosis.
Should I buy a used or reconditioned engine for my Mercedes-Benz B Class Diesel?
A used engine usually suits a lower upfront budget; a reconditioned engine can suit owners planning to keep the vehicle longer and wanting greater internal renewal and longer warranty potential. Compare the complete fitted cost and warranty, not the engine price alone.
Can I have a Mercedes-Benz B Class Diesel engine delivered to my own mechanic?
Yes. Choose supply-only if your garage has agreed to fit the engine. Before ordering, make sure the mechanic sees the warranty conditions and confirms which supporting parts or checks are required during installation.
How long is the warranty on a reconditioned Mercedes-Benz B Class Diesel engine?
Reconditioned engines can be supplied with warranty cover of up to three years, depending on the engine and the stated conditions. Check the written terms and any fitting or servicing requirements before installation.
What details do you need to find the correct Mercedes-Benz B Class Diesel engine?
Start with the registration. VIN, model year, engine code, fuel type, capacity, transmission or exact derivative may also be needed. The purpose is to confirm compatibility before the engine is reserved or dispatched.
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