
Photo by Muhammet Raşit Kaplan on Pexels
About the Mercedes-Benz E-Class W212
AI-generatedThe Mercedes-Benz E-Class W212 (2009-2016) represents a significant leap forward from its predecessor, offering a blend of luxury, technology, and refinement that cemented its position as a benchmark executive saloon. Available in saloon and estate (S212) body styles, the W212 introduced sophisticated styling with elegant flowing lines, a more spacious interior, and cutting-edge technology including the revolutionary COMAND infotainment system. Engine options ranged from efficient four-cylinder diesels to powerful V8 petrol variants, with the E63 AMG providing supercar-rivaling performance. This generation featured a comprehensive facelift in 2013 (often referred to as W212.2), which brought revised front and rear styling, improved engines, and enhanced technology including Collision Prevention Assist and more advanced LED lighting. The W212 is renowned for its comfortable ride quality, quiet cabin, and exceptional build quality, though it's not without its issues. Popular UK models include the E220 CDI and E250 CDI diesels, which offer an excellent balance of performance and economy, making them ideal for high-mileage business users and long-distance drivers alike.
Known Issues
Known Issues
W212 (2009-2016)
2009-2016
- Airmatic air suspension failure - compressor and air struts can fail, expensive to repair (£1,500-£3,000)
- Balance shaft issues on OM651 diesel engines (2009-2014) causing rattling and potential catastrophic failure
- Diesel particulate filter (DPF) clogging, especially on vehicles used for short journeys
- Glow plug failure on diesel models requiring full set replacement (£400-£800)
- SBC (Sensotronic Brake Control) brake system faults on early models, though less common than W211
- Rust on rear subframe and suspension mounting points, particularly on pre-2013 models
- Injector seal leaks on diesel engines causing rough running and smoke
- Thermostat failure leading to poor heating and engine management light activation
- Biodegradable wiring harness issues causing electrical gremlins (mainly 2009-2011)
- Steering column adjustment motor failure
- Panoramic sunroof drain blockages leading to water ingress and interior flooding

Photo by Muhammet Raşit Kaplan on Pexels
Running Costs
Running Costs
Annual Fuel
£2,200-£3,500
Insurance Group
28-45
Average Service
£450-£750
Cost Calculator
Typical Prices
£13,000 - £22,000
£11,000 - £18,000
£9,000 - £15,000
£7,500 - £13,000
Pros & Cons
Pros & Cons
Pros
- Exceptional build quality and luxurious interior with premium materials
- Comfortable and refined ride, particularly with Airmatic suspension
- Wide range of powerful yet efficient engines, especially the diesel variants
- Spacious cabin with generous rear legroom and boot space (540 litres saloon, 695 litres estate)
- Comprehensive safety equipment including multiple airbags and advanced driver aids
- Strong towing capability on estate models (up to 2,100kg)
- Timeless, elegant styling that still looks contemporary today

Photo by Erik Mclean on Pexels
Best & Worst Years
Best & Worst Years
Best Years
- 2014 - Post-facelift model with resolved balance shaft issues, updated engines, improved technology, and refined styling while avoiding the earliest depreciation hit of 2013 models
- 2015 - Mature production year with most bugs ironed out, updated safety systems, and better reliability than earlier models, plus benefits from manufacturer improvements
- 2016 - Final production year offering the most refined and reliable W212 experience with all updates implemented, though can command premium prices
Worst Years
- 2009 - Earliest model year with biodegradable wiring issues, early OM651 balance shaft problems, and initial production teething troubles that were later resolved
- 2010 - Still affected by balance shaft issues on diesel engines and biodegradable wiring harness problems without the benefit of being a collectible early model
- 2011 - Continues to suffer from OM651 balance shaft concerns and electrical gremlins, while offering fewer features than later facelifted models at similar used prices
Buying Checklist
Engine8 items
- Check service history for balance shaft replacement on 2009-2014 OM651 diesel engines
- Look for oil leaks around injector seals and rocker cover
- Listen for unusual rattling or knocking noises, especially when cold
- Ensure engine starts easily without excessive smoke on diesels
- Check coolant level and thermostat operation - should reach operating temperature quickly
Did You Know?
Did You Know?
The W212 was the first E-Class to feature LED headlights as standard on AMG models and optional on others, creating the distinctive 'eyebrow' daytime running lights.
Mercedes-Benz invested over €1 billion in developing the W212 platform, which also underpinned the CLS-Class (C218).
The E63 AMG Estate became one of the fastest production estate cars in the world, with the S-model reaching 0-60mph in just 3.6 seconds.
Over 2.4 million W212 E-Class vehicles were produced globally during its production run, making it one of Mercedes-Benz's most successful models.
Alternatives to Consider
BMW 5 Series (F10)
6/10More engaging to drive with sharper handling, similar luxury levels, and competitive running costs, though interior quality slightly behind Mercedes
Audi A6 (C7)
6/10Quattro all-wheel drive for better winter performance, excellent build quality, refined diesels, and slightly lower running costs
Jaguar XF (X250)
Stylish British alternative with excellent dynamics, lower purchase prices, but potentially higher depreciation and fewer diesel options
Lexus GS
Superior reliability and lower maintenance costs with hybrid options, though less sporty and smaller dealer network in UK
Volkswagen Passat (B7/B8)
Owner Tips
- 1Insist on full Mercedes-Benz service history and check for balance shaft replacement on 2009-2014 diesel models - this is critical
- 2Budget £1,000-£2,000 annually for maintenance and repairs; find a reputable independent Mercedes specialist to reduce costs by 40-50%
- 3Check air suspension thoroughly - press each corner and listen for compressor operation; budget for eventual replacement
- 4Ensure DPF has been regularly regenerated on diesel models; motorway runs help prevent blockages
- 5Check for sunroof drain blockages by pouring water into drain channels; clear regularly to prevent interior water damage
- 6Examine rear subframe and suspension mounting points for corrosion, especially on pre-2013 models in coastal or salted areas
- 7Test all electrical functions thoroughly including seat adjustments, climate control, and infotainment - repairs are expensive
- 8Change engine oil and filter annually regardless of mileage for longevity, especially on diesel variants
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