If you’re looking at a Mercedes M272 engine for sale, odds are your C-Class, E-Class or ML has thrown a check engine light that won’t go away, or a mechanic has just given you a repair quote that made you sit down. Balance shaft sprocket, timing chain, intake manifold, oil leaks into the wiring. The M272 has a reputation, and some of it is earned. But the rest of the car is usually fine, and that’s why an engine swap so often makes sense.
We’re NJ Global Auto Parts. We sell used and rebuilt engines and ship them to buyers around the world. The M272 V6 is one of the Mercedes engines we move most often, because it went into so many cars between 2004 and the early 2010s. This guide covers what we’d tell you if you called us about a Mercedes M272 engine for sale: the versions, the specs, which cars take it, what we check, what fails, prices, shipping and fitting.
It’s written the way we talk to customers. Plain and practical.
What You’re Getting With a Mercedes M272 Engine for Sale
The M272 is a 90 degree petrol V6 with four valves per cylinder, two overhead cams per bank and variable valve timing on both intake and exhaust. It has an aluminium block and heads and a balance shaft running down the middle of the V to smooth out the vibration that a 90 degree V6 naturally has.
It replaced the older M112, which was a three-valve, single-cam design. Compared with that engine, the M272 made more power, revved more freely and used less fuel. When it’s healthy, it’s a smooth, quiet and strong engine. That’s the reason so many owners go looking for a Mercedes M272 engine for sale rather than giving up on the car.
For a full list of versions and model years, the Mercedes-Benz M272 engine page is a decent starting point. When it comes to buying, though, the engine number stamped on your block matters more than anything you read online.
Mercedes M272 Engine for Sale: Full Specifications
These are the figures buyers ask us for most when they enquire about a Mercedes M272 engine for sale. Power changed slightly by model, year and market, so treat these as a close guide.
| Engine family | M272 (E25, E30, E35) |
| Layout | 90 degree V6, petrol, with balance shaft |
| Valvetrain | DOHC per bank, 24 valves, variable intake and exhaust cam timing |
| Block and heads | Aluminium |
| 2.5 litre (E25) | 2,496 cc, bore 88 mm x stroke 68.4 mm, around 150 kW (204 PS) |
| 3.0 litre (E30) | 2,996 cc, bore 88 mm x stroke 82.1 mm, around 170 kW (231 PS) |
| 3.5 litre (E35) | 3,498 cc, bore 92.9 mm x stroke 86 mm, around 200 kW (272 PS) and 350 Nm |
| Later 3.5 versions | Updated tune with around 215 to 225 kW in some models |
| Compression ratio | Around 10.5:1 to 11.7:1 depending on version |
| Intake | Variable length intake manifold with tumble flaps |
| Cam drive | Timing chain |
| Fuel | Premium unleaded |
| Production | 2004 to around 2015 |
The 3.5 is the one most people are looking for. It has the best mix of power and economy and it went into the widest range of cars.
Which Mercedes Models Use the M272
The M272 was fitted to a long list of cars. The common ones we get asked about include:
- C-Class: C230, C280, C300 and C350 (W203 and W204)
- E-Class: E230, E280, E300 and E350 (W211 and early W212)
- CLK: CLK280 and CLK350 (C209 and A209)
- CLS: CLS350 (C219)
- SLK: SLK280, SLK300 and SLK350 (R171)
- SL: SL280 and SL350 (R230)
- ML: ML350 (W164)
- R-Class: R350 (W251)
- GLK: GLK280, GLK300 and GLK350 (X204)
- S-Class: S280, S300 and S350 (W221)
Our post on which Mercedes models use the M272 engine has more detail. Before you buy any Mercedes M272 engine for sale, send us your VIN. Engine variants, sumps, wiring and ancillaries differ between 2WD, 4MATIC and SUV models, and the VIN removes the guesswork.
How Each M272 Version Drives
Specs on paper only tell part of the story, so here’s how the three sizes feel in normal use.
The 2.5 is the smallest and the least common. It’s fine in a C-Class that mostly does city driving, but it has to work harder on the motorway and in heavier cars. If your car came with the 2.5, it makes sense to replace like with like so the software and gearbox calibration stay matched.
The 3.0 is the middle ground. It pulls noticeably better than the 2.5 and sits nicely in an E-Class or C-Class. Fuel use isn’t far off the 3.5, which is why the 3.5 tends to be more popular overall.
The 3.5 is the one most people want. It has real mid-range pull, it’s smooth all the way to the red line and it suits everything from the SLK to the ML. When customers ask us for a Mercedes M272 engine for sale, about seven out of ten are asking for the 3.5.
4MATIC, SUVs and Convertibles: Extra Things to Check
Not every M272 is the same underneath. All-wheel drive 4MATIC cars use different sumps and oil pickups on some models, because the front axle runs through or close to the oil pan. The ML350 and R350 have their own accessory layouts. Roadsters like the SLK and SL can have different intake and cooling parts because of the tighter engine bay.
None of this is a problem if the engine is matched properly. It just means you shouldn’t assume any 3.5 V6 will bolt straight in. Give us your VIN and tell us the model, and we’ll check the details before you commit.
It’s also worth telling us if the car has been converted or modified in any way. Swapped intake manifolds, aftermarket software or a non-original gearbox all affect which engine is the right match.
Running Costs After the Swap
People sometimes forget that a replacement engine resets a lot of running costs. A good used or rebuilt M272 with a healthy chain and fresh seals should run for years with normal servicing. Fuel use should drop back to where it was when the car was healthy, because a worn engine with timing faults burns more.
Plan on spending a little extra during the fit on the parts that commonly age on these cars: engine mounts, the thermostat, spark plugs, hoses and the drive belt. It’s much cheaper to do them with the engine out than to come back later.
If you keep the oil changed on time and fix leaks early, the replacement engine should outlast the rest of the car.
Replace or Repair? What Makes Sense on an M272
Some M272 problems are fixable in the car. A leaking cam magnet, a thermostat housing or an intake flap linkage are not reasons to swap an engine. But some jobs cost so much in labour that a replacement starts to look smarter.
The balance shaft sprocket job is the classic example. On many cars it means taking the engine out anyway. Once the engine is out, the labour bill is already big, and the price of a good Mercedes M272 engine for sale is often not much more than the parts and machine work to fix the old one. If the timing chain has stretched badly, the guides are broken or the engine has jumped time, the same logic applies.
Get two quotes: one to repair, one to replace. Compare them honestly, including the risk that a repaired high-mileage engine might need more work soon after.
Used, Rebuilt or Long Block
Used engine
A used M272 comes out of a running car. It’s the most affordable option. We check it before it goes anywhere, and we tell you what we know about its history. It suits buyers who want value and are happy to change seals and service parts during fitting.
Rebuilt engine
A rebuilt engine has been taken apart and put back together with new wear parts. On an M272 that should include the timing chain, guides, tensioner and, on early engines, the updated balance shaft or idler sprocket parts. It costs more, but it removes the biggest worries.
Long block or complete
A long block is the core engine. A complete Mercedes M272 engine for sale includes more of the bolt-on parts, such as the intake manifold, sensors and sometimes the alternator and AC compressor. If your old ancillaries are in good shape, a long block saves money. Our guide to rebuilt vs used engines explains the trade-offs.
7 Checks We Make on Every Mercedes M272 Engine for Sale
- Engine serial number. We record it so you know whether it’s an early or later unit. That matters for the balance shaft issue.
- Compression test. All six cylinders, looking for strong, even numbers.
- Cam timing check. We look at fault history and cam and crank correlation where we can. Codes like P0016 and P0017 on an M272 are a warning sign.
- Timing chain and guides. We look for chain noise and inspect what’s visible for wear.
- Oil condition and sump. Clean oil, no metal, no coolant.
- Leaks. Cam magnets, valve covers, oil cooler and filter housing.
- Photos and documentation. You see the real engine, its number and its test results before you pay.
If an engine fails any of these, we don’t sell it as a Mercedes M272 engine for sale on our list.
Common M272 Problems Worth Knowing
Balance shaft and idler sprocket wear
This is the problem the M272 is known for. Early engines had a sprocket on the balance shaft, and on some engines the idler gear, that wore prematurely. The chain then loses accuracy, cam timing drifts and you get a check engine light with cam and crank correlation codes. Later engines used an improved part. This is why we always check the engine serial number on any Mercedes M272 engine for sale. Read our post on M272 balance shaft failure symptoms for the details.
Timing chain stretch
Even without the sprocket issue, chains and guides wear with time. Rattle on a cold start is a common early sign.
Intake manifold and tumble flaps
The plastic flaps and linkages inside the manifold can break, causing rough running and fault codes. In some cases pieces can drop into the engine.
Oil leaking into the wiring
The cam adjuster magnets can leak oil, which then wicks along the harness towards the ECU. Fix this early.
Oil leaks and thermostat housing
Valve covers, the oil cooler gasket and the plastic thermostat housing are common leak points. Our post on M272 oil leak causes goes deeper.
How to Tell the Old Engine Is Finished
Before you start shopping for a Mercedes M272 engine for sale, make sure you’re replacing it for the right reason. These signs usually mean the engine is done:
- Jumped timing or a failed timing chain
- Low compression on one or more cylinders
- Knocking from the bottom end
- Metal in the oil
- Overheating damage with coolant in the oil
- A balance shaft repair quote that’s close to the cost of an engine
What Comes With a Mercedes M272 Engine for Sale From Us
- Photos of the exact engine and its serial number
- Compression results
- A list of what’s attached
- Mileage information where available
- Written warranty terms
- Proper crating for shipping
You can also go straight to our product page for the Mercedes M272 engine.
Questions to Ask Any Seller
- What’s the full engine serial number?
- Is it an early or later unit for the balance shaft issue?
- Were there any stored fault codes when it came out?
- What were the compression readings?
- Is the intake manifold included, and what condition are the flaps in?
- What exactly does the warranty cover?
If a seller dodges these questions, walk away. A genuine Mercedes M272 engine for sale should come with straight answers.
A Quick Note for Workshops and Trade Buyers
Many of our M272 buyers are independent Mercedes specialists and general workshops. If you replace these engines regularly, talk to us about trade terms. We can keep you supplied, match the exact variant you need and ship several units together. Workshops that buy a Mercedes M272 engine for sale from us often also take M273 and M276 units, so it helps to set up one account.
How Much Does a Mercedes M272 Engine for Sale Cost?
We don’t publish fixed prices because stock and condition change. What affects the price:
- Displacement. The 3.5 is the most in demand.
- Used or rebuilt. Rebuilt costs more but includes new chain parts.
- Early or late serial number. Later engines are generally worth more.
- Complete or long block.
- Delivery destination.
For a breakdown of what the whole job usually costs, read our guide to the cost of replacing a Mercedes M272 engine. Or just send us your VIN and country, and we’ll quote a Mercedes M272 engine for sale delivered to your door.
Shipping a Mercedes M272 Engine for Sale Worldwide
We ship to North and South America, Europe, the Middle East, Africa, Asia and Oceania. Every Mercedes M272 engine for sale we ship is drained, sealed, strapped to a pallet or crated, and labelled. Sea freight to your nearest port is the usual choice. Air freight is available if you’re in a hurry.
Duties and taxes depend on your country. The World Customs Organization has general background on how goods are classified, but a local broker will give you the real numbers. See our shipping policy for more.
Fitting Advice for Your Mechanic
- Transfer or replace the cam adjuster magnets, and check the harness for oil.
- Replace the thermostat and housing while access is easy.
- Fit new spark plugs and check the coils.
- Flush the cooling system and use the correct Mercedes-approved coolant.
- Prime the oil system before the first start.
- Check the intake manifold flaps if you’re reusing your old manifold.
- Clear old fault codes and run a cam and crank correlation check after start-up.
- Inspect engine mounts. Tired mounts are common on these cars.
Our M272 specs and reliability guide is worth a read for your mechanic too.
Keeping the New Engine Healthy
Buying a Mercedes M272 engine for sale is only half the job. A few habits make a big difference:
- Change the oil on time with a Mercedes-approved synthetic. Long service intervals are hard on chains.
- Don’t ignore a check engine light, especially cam timing codes.
- Fix oil leaks before they reach the wiring.
- Keep the cooling system healthy. The plastic parts age.
- Listen for chain rattle on cold starts.
M272 vs M273 vs M276: Can You Swap Them?
The M273 is the V8 sister engine to the M272 and shares many design ideas, but it’s a different size and won’t drop into a V6 car without a lot of work. The M276 is the newer V6 that replaced the M272, and it uses different wiring, electronics and mounts. In practice, the best replacement for an M272 is another M272 of the right variant. Our post on M272 vs M273 differences explains more.
How to Order a Mercedes M272 Engine for Sale
- Send your VIN and delivery country through our contact page.
- We match you to the right Mercedes M272 engine for sale and send photos, the serial number and a delivered price.
- You confirm and pay according to our billing terms.
- We crate and ship, then send tracking.
- Your mechanic fits it using the advice above.
More Mercedes Engines From NJ Global Auto Parts
Browse all our Mercedes engines or the full used engine range. Related engines our customers ask about:
Why Buy From Us
We know what M272 buyers worry about: getting an early engine with a worn sprocket, getting the wrong variant, and paying for something that never turns up. So you see the real engine, you get its serial number, you get compression figures, a written warranty and tracked shipping. If something isn’t right, you speak to a person, not a bot. Read more about us and our refund and returns policy.
When you compare every Mercedes M272 engine for sale you find, look at the serial number, the test results and what’s included. The cheapest listing is rarely the cheapest engine once it’s in the car.
Frequently Asked Questions
Is the M272 a reliable engine?
Later engines and well-serviced early engines can be very reliable. The balance shaft sprocket issue is the main weakness on early units.
How do I know if a Mercedes M272 engine for sale is an early or late unit?
By the engine serial number. Ask for it and we’ll explain what it means for that engine.
Will a 3.5 fit where a 3.0 was?
Physically it’s similar, but wiring, software and sometimes ancillaries differ. Talk to us first.
How many kilometres will a replacement M272 last?
A healthy M272 that gets regular oil changes can go well past 250,000 km. We’ve seen plenty go much further. The engines that fail early are usually the ones that skipped services or ran with timing faults for months.
Can I reuse my old intake manifold?
Yes, if the flaps and linkage are in good shape. If they’re worn or broken, replace the manifold while the engine is out. It’s a much easier job then.
Do I need to code anything after fitting?
Usually not if the replacement is the same variant. A good Mercedes diagnostic tool should be used to clear codes, check adaptations and confirm cam timing. If you’re changing variant, more work may be needed.
How long does delivery take?
It depends on your country and whether you choose sea or air freight. We give you an estimate with every Mercedes M272 engine for sale quote, and tracking once it ships.
Do you ship worldwide?
Yes. Sea and air freight to most countries.
Does the engine have a warranty?
Yes, and we put the terms in writing before you pay.
Get a Quote on a Mercedes M272 Engine for Sale
Every week your Mercedes sits unused is money lost. Send us your VIN and country and we’ll come back with photos, a serial number and a delivered price on a Mercedes M272 engine for sale that matches your car. Contact us or visit the shop.