Mercedes Benz E Class 220 CDI Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Mercedes Benz E Class 220 CDI engine specialists. Compare prices on reconditioned, rebuilt and used OM611 and OM646 diesel engines - supply & fit available nationwide.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £1,200 to £3,200
Used from £800 · Reconditioned from £1,500 · Common codes: OM611.961, OM646.961
From £800
Tested, bare/short engine
From £1,500
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
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3 Simple Steps3 Simple Stepsto Finding the Best Mercedes Benz E Class 220 CDI Replacement Engineto Finding the Best Mercedes Benz E Class 220 CDI Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryMercedes Benz E Class 220 CDI - Engine History & Specs at a Glance
The E 220 CDI badge represented Mercedes-Benz's mid-range diesel offering across the W210 and W211 E-Class generations. It used 2.1-litre inline-four turbodiesel engines - the OM611 in the W210 and the updated OM646 in the W211 - delivering the blend of performance and economy that made these cars UK taxi and fleet favourites.
Variant HistoryMercedes Benz E Class 220 CDI - Engine History & Specs at a Glance
The E 220 CDI badge represented Mercedes-Benz's mid-range diesel offering across the W210 and W211 E-Class generations. It used 2.1-litre inline-four turbodiesel engines - the OM611 in the W210 and the updated OM646 in the W211 - delivering the blend of performance and economy that made these cars UK taxi and fleet favourites.
Mercedes Benz E Class 220 CDI
Fuel TypeDiesel
Engine Size2.1L (2,148 cc)
Power Output Range105-150 hp (105-110 kW) across the variant's historyEngine History Timeline
**1999** - W210 E 220 CDI launched with OM611.961 2.1-litre turbodiesel 105 kW (143 hp)
**1999-2000** - OM611 displacement reduced from 2,151cc to 2,148cc for E-Class applications
**2002** - W211 E 220 CDI launched with updated OM646.961 engine 110 kW (150 hp), Euro 4 compliant
**2002-2006** - OM646 DE 22 LA fitted to W211 E 220 CDI (110 kW / 150 hp) with Lanchester balancer shaft for six-cylinder smoothness
**2006** - OM646 updated; E 220 CDI available with 125 kW (170 hp) variant in some markets
**2009** - W211 production ends; OM651 replaced OM646 in W212 generation
Key Specs Snapshot
Fuel TypeDieselEngine Size2.1L (2,148 cc)Power Output Range105-150 hp (105-110 kW) across the variant's historyYears Produced1999-2009Every engine fitted to the Mercedes E Class 220 CDI is covered below, with UK rebuilt pricing and known failure points.
Mercedes Benz E Class 220 CDI Engine Codes - Specifications & Replacement CostMercedes Benz E Class 220 CDI Engine Codes - Specifications & Replacement Cost
2.1L Diesel (1999-2002)
Power Output105 kW (143 hp)Years Fitted1999-2002 (W210 E-Class)
Compatible Trim Levels
- E 220 CDI (W210)
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£800-£1,300
Reconditioned
Addressed known issues, tested
£1,500-£2,400
Rebuilt
Full teardown, upgraded internals
£1,900-£3,000
Common Failure
Injector seal failure ("Black Death") - copper washer seals degrade, allowing combustion gases to leak past, creating hard carbon deposits around injectors. If left unaddressed, can damage cylinder head and require injector extraction. Timing chain stretch also reported on higher-mileage units.
The OM611 and OM646 engines that power the E Class 220 CDI are fundamentally robust units - properly maintained examples regularly exceed 250,000 miles, with some Sprinters using the same family reaching nearly 500,000 miles without major failures. However, two specific failures dominate replacement enquiries: injector seal failure ("Black Death") and timing chain wear. Every rebuilt engine supplied through EnginesMarket includes upgraded components designed to address the original failure point, plus a minimum 12-month unlimited mileage warranty. Below, we break down what these failures cost to fix and when replacement is the smarter option.
Why E Class 220 CDI Diesel Engines Suffer Prematurely
Affected Vehicles
Mercedes E Class 220 CDI (OM611, OM646, 1999-2009)
Typical Failure Mileage
80,000 - 150,000 miles
Root Cause
The copper injector sealing washer degrades over time, allowing combustion gases to escape past the injector. This creates hard carbon deposits - the characteristic "Black Death" - that can weld injectors into the cylinder head. Injector seals cost as little as £1 each, but labour and specialist tools make the repair significantly more expensive.
Why It Happens
The copper injector sealing washer degrades over time, allowing combustion gases to escape past the injector. This creates hard carbon deposits - the characteristic "Black Death" - that can weld injectors into the cylinder head. Injector seals cost as little as £1 each, but labour and specialist tools make the repair significantly more expensive.
Dealer (parts + labour)
£600-£900
Specialist (parts + labour)
£350-£550
What it involves
Removal of injectors, cleaning of injector bores, new copper seals and stretch bolts
Suitability
60,000-80,000 miles; effective if caught before carbon buildup becomes severe
1 - 2 daysDealer (parts + labour)
£1,200-£2,000
Specialist (parts + labour)
£800-£1,400
What it involves
Stuck injector removal (may require specialist extraction tools), thread repair, new seals and injectors if damaged
Suitability
100,000+ miles; necessary when injectors are seized in the head
1 - 2 daysDealer (parts + labour)
£3,500-£5,000
Specialist (parts + labour)
£1,900-£3,200
What it involves
Supply & fit of rebuilt OM611/OM646 with new injectors, seals and upgraded components
Suitability
When injector damage has compromised the cylinder head or engine has suffered consequential damage
1 - 2 daysAll prices are indicative UK market ranges based on current UK specialist supplier data.| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
 Minor - Injector Seal Replacement Minor | £600-£900 | £350-£550 | Removal of injectors, cleaning of injector bores, new copper seals and stretch bolts | 60,000-80,000 miles; effective if caught before carbon buildup becomes severe | 1 - 2 days |
 Major - Injector Extraction & Head Repair Best Value | £1,200-£2,000 | £800-£1,400 | Stuck injector removal (may require specialist extraction tools), thread repair, new seals and injectors if damaged | 100,000+ miles; necessary when injectors are seized in the head | 1 - 2 days |
Full Replacement - Rebuilt Engine Best Value | £3,500-£5,000 | £1,900-£3,200 | Supply & fit of rebuilt OM611/OM646 with new injectors, seals and upgraded components | When injector damage has compromised the cylinder head or engine has suffered consequential damage | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical W210 E Class 220 CDI is worth £1,500-£4,000 depending on condition and mileage; a W211 example typically commands £2,500-£6,000【INDUSTRY ESTIMATE】. If the vehicle is worth under £3,000, a used engine or minor injector seal repair is usually the pragmatic choice. For W211 cars worth £4,000+, a rebuilt engine with warranty can be justified if the rest of the car is sound.
Our Recommendation
Our Recommendation
Injector seal replacement is almost always the right first step if caught early - the £350-£550 specialist cost is far less than the £2,000+ bill for a seized injector removal and head repair. If "Black Death" has been ignored and the injectors are seized, weigh the cost of head repair against a rebuilt engine. On a W211 E 220 CDI with good bodywork and transmission, a rebuilt engine often makes more sense than a costly extraction job.
Don't Let Engine Failure Write Off Your Mercedes E Class 220 CDI
Whether your E Class 220 CDI is suffering from injector "Black Death" or you've noticed the telltale cold-start rattle of a timing chain tensioner issue, EnginesMarket makes it simple to compare prices from trusted UK Mercedes specialists. Every rebuilt engine in our network includes upgraded components designed to address the original failure point - plus a minimum 12-month unlimited mileage warranty and nationwide delivery. Compare prices, choose a specialist, and get back on the road without the main dealer premium.
Compare rebuilt OM611 / OM646 Mercedes E Class 220 CDI engine prices
12-Month Minimum
UK Specialists Vetted
Best Price GuidanceImportant Information
Important Information
"All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EnginesMarket's UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific Mercedes E Class 220 CDI. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
Mercedes E Class 220 CDI Engine ReplacementFrequently Asked Questions
Question 1How much does a Mercedes E Class 220 CDI engine replacement cost in the UK-
Short summary: Supply-only rebuilt OM611 or OM646 engines range from £1,900 to £3,200 depending on engine code and condition. With specialist fitting, budget £2,300-£4,000 total.
- OM611.961 (E 220 CDI, 143 hp): rebuilt £1,900-£3,000
- OM646.961 (E 220 CDI, 150 hp): rebuilt £2,000-£3,200
- Labour adds £400-£800 depending on specialist location
Question 2What are the signs of "Black Death" injector failure in an E Class 220 CDI-
Short summary: Visible black, crusty carbon deposits around the injector bases under the engine cover - along with a diesel smell in the cabin or engine bay.
- Hard, tar-like carbon buildup around one or more injectors is the classic sign
- May be accompanied by a chuffing sound from the leaking injector seal
- If ignored, injectors can seize in the head, requiring specialist extraction
- Early replacement of seals (£350-£550 at a specialist) prevents costly head damage
Question 3Is it worth replacing the engine on an older E Class 220 CDI-
Short summary: Yes, if the car is otherwise sound and the replacement cost is under £3,500 supply and fit. W211 E Classes still command £2,500-£6,000 used, making replacement viable.
- A quality rebuilt OM646 costs £2,000-£3,200 supply only
- W211 examples with good service history still hold strong value
- A replacement engine with warranty costs less than financing a newer car
- Specialist fitting adds £400-£800, not dealer rates of £1,500+
Question 4What causes the timing chain to fail on E Class 220 CDI models-
Short summary: The single-row timing chain stretches when oil changes exceed 10,000 miles - extended service intervals are the primary culprit. Cold-start rattle is the first warning sign.
- Chain stretch typically occurs between 100,000-200,000 miles
- Cold-start rattle that disappears after a few seconds is the early warning
- Tensioner replacement at a specialist costs £350-£600; full chain replacement £750-£1,200
- Some OM646 examples have exceeded 250,000 miles on the original chain
Question 5What is the difference between the OM611 and OM646 engines in the E Class 220 CDI-
Short summary: The OM646 is an evolution of the OM611 - both are 2.1-litre inline-four turbodiesels, but the OM646 features improved fuel injection pressure (1,600 bar vs 1,350 bar) and Euro 4 emissions compliance.
- OM611 fitted to W210 E-Class (1999-2002) - Euro 3, 143 hp
- OM646 fitted to W211 E-Class (2002-2009) - Euro 4, 150 hp
- OM646 features a Lanchester balancer shaft for improved smoothness
- Both share the same 88mm bore × 88.3mm stroke
Question 6How long does a Mercedes E Class 220 CDI engine last-
Short summary: With proper maintenance and 8,000-10,000 mile oil changes, OM611 and OM646 engines regularly reach 250,000-300,000 miles. Some examples have exceeded 500,000 miles in taxi and fleet use.
- OM611/OM646 bottom ends are exceptionally robust
- Injector seal replacement at 80k-150k miles is the key maintenance item
- Timing chain tensioner replacement at 100k+ miles prevents issues
- Short oil change intervals (8k miles) are critical for longevity
Why Choose UsCompare Mercedes E Class 220 CDIEngine PricesToday
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