Mercedes-Benz OM642 Engine
Used & Reconditioned for Sale
3.0 CDI, OM642 DE30, sub-codes .820–.980 series
Displacement
Fuel
Production
Fits C-Class W204, E-Class W211/W212, S-Class W221 and more — verified fitment by registration, fixed prices, UK delivery.
Displacement
Fuel
Production
Configuration
Applications
Verified Fitment
Checked by registration
12-Month Warranty
On reconditioned units
UK Nationwide Delivery
2-4 working days
14-Day Returns
Uninstalled, full refund
Buy an OM642 Engine for Your Vehicle
This OM642 engine hub covers 8 application groups across Mercedes-Benz car, SUV, van, and pickup models. Each group is configured and priced for its specific vehicle fitment.
OM642 — C-Class W204
C-Class W204 2007-2014 — C320/C350 CDI
£1,795
Coming soonOM642 — E-Class W211/W212
E-Class W211/W212 2005-2016 — E320/E350 CDI
£1,895
Coming soonOM642 — S-Class / CLS
S-Class W221 & CLS W219/C218 2005-2017
£1,995
Coming soonOM642 — SUV Range
ML/GLE, GLK, GL/GLS, R-Class 2005-2019
£2,195
Coming soonOM642 — G-Class W463
G-Class W463 2006-2018 — G350 CDI/BlueTEC
£2,495
Coming soonOM642 — Sprinter W906
Sprinter 219/319/419 CDI 2006-2018
£1,995
Coming soonOM642 — Vito/Viano W639
Vito 120/122 CDI & Viano 3.0 CDI 2006-2014
£1,895
Coming soonOM642 — X-Class X470
X-Class X350d 2017-2020
£3,895
Coming soonFull OM642 Compatibility
Every OM642 application listed below links to its specific unit page with registration-checker confirmation. All fitments are verified by chassis code — confirm your vehicle's OM642 variant before ordering.
| Model | Chassis | Variants | Years | Config. | Unit page |
|---|
Confirm your exact specification with the registration checker above.
OM642 Engine Prices
Prices are grouped by vehicle application. Each OM642 variant has its own fitment specification — check your chassis code before ordering.
| Application | Used from | Reconditioned from |
|---|---|---|
| C-Class W204 | £1,795 | £2,695 |
| E-Class W211/W212 | £1,895 | £2,895 |
| S-Class / CLS | £1,995 | £3,095 |
| SUV Range (ML/GLE, GLK, GL/GLS, R-Class) | £2,195 | £3,295 |
| G-Class W463 | £2,495 | £3,595 |
| Sprinter W906 | £1,995 | £3,095 |
| Vito/Viano W639 | £1,895 | £2,895 |
| X-Class X470 | — | £3,895 |
Prices shown are current lowest listed prices and update as stock changes. The price on each listing is the price you pay — no hidden fees at checkout.
What You Get with a OM642 Engine
What You Get with a OM642 Engine
What's included
Not included
Used or reconditioned?
For the high-volume car and van applications (Groups 1, 2, 6, and 7), used units are widely available given the extensive UK donor parc, offering strong value. For the lower-volume and higher-spec applications (Groups 3, 5, and 8), reconditioned units are more commonly selected given higher replacement cost, thinner used supply, and vehicle value. The OM642 3.0 V6 diesel is one of Mercedes-Benz's most widely-deployed engines, fitted across the C-Class, E-Class, S-Class, CLS, the full SUV range, G-Class, Sprinter, Vito/Viano, and X-Class over a 15-year production run. Replacement demand is driven by oil cooler seal degradation, swirl-motor wear in the intake manifold, and timing chain wear on higher-mileage examples. A prepared OM642 unit addresses these wear points as standard before dispatch.
OM642 Engine Buying FAQs
Answers to common fitment, condition, warranty and delivery questions.
A:The OM642 engine fits Mercedes-Benz C-Class W204, E-Class W211/W212, S-Class W221, CLS W219/C218, ML/GLE W164/W166, GLK X204, GL/GLS X164/X166, R-Class W251, G-Class W463, Sprinter W906, Vito/Viano W639, and X-Class X470. Also confirmed in Jeep Grand Cherokee and Chrysler 300C (pending full cross-brand verification).
A:The OM642 is also known as 3.0 CDI, OM642 DE30, and carries application-specific sub-codes .820–.980 series. All share the same base V6 diesel architecture.
A:For the high-volume car and van applications (Groups 1, 2, 6, and 7), used units are widely available given the extensive UK donor parc, offering strong value. For the lower-volume and higher-spec applications (Groups 3, 5, and 8), reconditioned units are more commonly selected given higher replacement cost, thinner used supply, and vehicle value. The best choice depends on your vehicle application and budget — use our reg checker to confirm fitment.
A:Use our registration checker on each listing, cross-reference with your V5C logbook, and verify the engine code stamp (OM642 with sub-code) matches the listing scope. Contact for a free compatibility check if uncertain.
A:All units carry a 6–12 month warranty. UK nationwide palletised delivery. Free compatibility check before purchase.
Buy an OM642 Engine — Ready to Ship
Enter your registration or select your vehicle to confirm the correct OM642 variant for your car or van. All prices fixed with no hidden fees.