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Popular Mercedes CLS Class Petrol 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 CLS Class Petrol Engine M278.922 Average rating: 5 4 -300
M278.922
4.7 Litre 4663 cc Petrol 3 CYLINDER INLINE Turbo 2011-2017 -
Mercedes Mercedes CLS Class Petrol Engine M276.820 Average rating: 5 4 -300
M276.820
3.0 Litre 2996 cc Petrol V TYPE 12 CYLINDER Turbo 2014-2017 -
Mercedes Mercedes CLS Class Petrol Engine M276.820 Average rating: 5 4 -300
M276.820
3.0 Litre 2996 cc Petrol V TYPE 12 CYLINDER Turbo 2014-2017 -
Mercedes Mercedes CLS Class Petrol Engine M276.850 Average rating: 5 4 -300
M276.850
3.5 Litre 3498 cc Petrol V TYPE 12 CYLINDER Turbo 2014-2017 -
Mercedes Mercedes CLS Class Petrol Engine M276.850 Average rating: 5 4 -300
M276.850
3.5 Litre 3498 cc Petrol V TYPE 12 CYLINDER Turbo 2014-2017 -
Mercedes Mercedes CLS Class Petrol Engine M276.820 Average rating: 5 4 -300
M276.820
3.0 Litre 2996 cc Petrol V TYPE 12 CYLINDER Turbo 2015-2017 -

What to do after Mercedes-Benz CLS Class Petrol engine failure

Short answer: if the engine in your Mercedes-Benz CLS Class Petrol has failed, you can compare a used replacement engine with a reconditioned engine, choose supply-only or professional fitting, and request recovery if the vehicle is not driveable.

  • Service choice: supply-only or supply-and-fit.
  • Used engine warranty: up to 6 months, depending on the unit and stated terms.
  • Potential saving: up to 40% against comparable main-dealer routes where the job and specification allow.
  • Recovery: available for non-running vehicles to the garage doorstep across mainland UK.
  • Reconditioned engine warranty: up to 3 years, depending on the engine and stated terms.

What information is needed for an accurate Mercedes-Benz CLS Class Petrol engine quote?

Have the registration number ready first. Depending on the model, the supplier may also ask for VIN, engine code, year, fuel type, capacity, gearbox and exact derivative. This is not unnecessary paperwork: it is how a replacement is checked against the real vehicle. Engine capacity alone is not enough evidence of compatibility. Written confirmation of the unit specification and supplied ancillaries makes the quote easier for both you and the fitting garage to assess.

Do not ignore the systems around the Mercedes-Benz CLS Class Petrol engine

Petrol engines can vary by output and generation even when capacity looks identical. Engine code, electronics and attached components should be confirmed before dispatch, particularly on turbocharged or higher-output versions.

Which Mercedes-Benz CLS Class Petrol replacement gives the best value?

OptionUsually suitsWarranty position
Used engineLower upfront budget, quicker return to the road where suitable stock existsUp to 6 months, subject to unit and terms
Reconditioned engineOwners keeping the vehicle longer or wanting a more extensively renewed unitUp to 3 years, subject to engine and terms

Do not compare the two by purchase price alone. Ask what is included, what the warranty requires from the fitter and which additional parts should be renewed before the replacement is commissioned.

How will the Mercedes-Benz CLS Class Petrol get back on the road?

You can buy the replacement engine for your own garage, or choose a fitted option through the BuyEngines network. A non-running vehicle can also be recovered to the selected workshop across mainland UK. This matters because broken-engine jobs often become expensive through fragmented arrangements: one company supplies the engine, another transports the car and a third fits it. Comparing the whole route early makes responsibilities clearer and can shorten the time between engine failure and a usable vehicle.

How much does a replacement Mercedes-Benz CLS Class Petrol engine cost?

There is no credible single fixed price for every Mercedes-Benz CLS Class Petrol. The figure changes with the exact engine code, condition, mileage or reconditioning level, availability, ancillaries, warranty and whether labour is included. The total fitted price can also change if the workshop finds damaged supporting components or the cause of the original failure must be corrected. BuyEngines is designed to compare alternatives rather than present a misleading universal figure. Where a comparable main-dealer route exists, suitable jobs can deliver savings of up to 40%, but the meaningful comparison is the completed repair with like-for-like inclusions.

Evidence matters on a major engine purchase

Do not rely only on phrases such as “good engine” or “tested”. Ask what the description actually means, what is covered if a fault develops and what the fitter must do to keep the warranty valid. Retain the engine identification, invoice, warranty and fitting documents. BuyEngines has 35 years of experience and works through equipped workshops and qualified mechanics across its UK network, but the customer should still receive clear written terms for the individual unit being purchased.

Choose your Mercedes-Benz CLS Class Petrol replacement by priority

There is no single best engine route for every owner. Use the situation closest to yours as the starting point:

  • If you want stronger protection after purchase, keep the engine identification, invoice, warranty and fitting records together. Clear documentation makes any later technical or warranty discussion much easier.
  • If the rest of the car is dependable and you know its history, engine replacement can preserve a vehicle you already understand instead of replacing it with another used car carrying unknown maintenance risks.
  • 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.

Complex electronics and higher-value ancillaries make a clearly scoped premium-vehicle engine quote more important. For this petrol application, confirm the exact engine revision and discuss cooling, lubrication, timing and turbocharging checks where applicable.

What happens when you request a Mercedes-Benz CLS Class Petrol engine quote

  1. Identify the car: Send the Mercedes-Benz CLS Class Petrol registration and any VIN or engine-code details available.
  2. Choose the route: Tell us whether you want used, reconditioned or both; supply-only or fitted; and whether recovery is required.
  3. Compare the complete quote: Check engine specification, warranty, inclusions, fitting scope and any likely additional parts before you commit.

The aim is to give you a route from engine failure to a properly matched replacement without unnecessary calls between unrelated suppliers.

Compare Mercedes&nbspCLS Class Petrol engine quotes from trusted UK suppliers Mercedes&nbspCLS Class Petrol owner comparing replacement engine options Compare Mercedes&nbspCLS Class Petrol engine warranty mileage and delivery options
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The comparison made it easier to understand my options instead of contacting different engine breakers separately.

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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 CLS Class Petrol replacement engines

How long is the warranty on a reconditioned Mercedes-Benz CLS Class Petrol 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.

Could I save money compared with a main dealer on a Mercedes-Benz CLS Class Petrol 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.

How quickly can a Mercedes-Benz CLS Class Petrol engine be replaced?

Timescale depends on exact engine availability, delivery or recovery, workshop capacity and whether additional faults or parts are found. Ask for a realistic current estimate after the engine has been matched rather than relying on a generic turnaround claim.

Why is specialist fitting important for a Mercedes-Benz CLS Class Petrol?

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.

Can you fit the replacement Mercedes-Benz CLS Class Petrol engine for me?

Yes. BuyEngines offers supply-and-fit as well as supply-only. Fitting can be arranged through the mainland UK garage network. Ask the quote to state the labour scope and which fluids, filters or additional parts are included.

Can I have a Mercedes-Benz CLS Class Petrol 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.

What details do you need to find the correct Mercedes-Benz CLS Class Petrol 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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