About the Mercedes-Benz GL Class
Produced from 2006 to 2016 before being renamed the GLS Class, the Mercedes-Benz GL Class was the brand's flagship SUV. Built in the USA primarily for the American market, it nonetheless found favour with UK buyers seeking a large, luxurious family vehicle. The GL offered seating for seven adults in genuine comfort, with all three rows being genuinely usable for longer journeys.
Two generations were produced: the X164 (2006-2012) and the X166 (2012-2016). Engine options included the GL320 CDI and GL350 CDI diesels, which proved most popular in the UK, alongside petrol variants like the GL450 and GL500, plus the performance-oriented GL63 AMG. Standard equipment was generous across the range, including air suspension, leather upholstery, satellite navigation and a comprehensive suite of safety features.
What Affects the Price of a Used GL Class
Year and generation significantly impact value, with post-2012 X166 models commanding substantial premiums over earlier X164 versions. The GL350 CDI diesel represents the sweet spot for UK buyers, offering strong performance and reasonable running costs, whilst rarer petrol models and the GL63 AMG attract enthusiast premiums despite higher running costs.
Mileage is crucial - these vehicles often cover high annual miles as family transport, so lower-mileage examples are highly sought after. Full Mercedes-Benz service history adds considerable value, as maintenance costs can be significant without warranty coverage. Specification matters, with desirable options including panoramic sunroof, Harman Kardon sound system, rear entertainment, and the Airmatic suspension system. Condition of the interior, particularly the third-row seats and boot area, affects valuation as family use can cause wear.
Colour choice impacts desirability, with metallics like Obsidian Black, Iridium Silver and Tenorite Grey most popular. The facelift X166 models (2015-2016) with updated styling and improved infotainment command the highest prices in the GL range.
Tips for Buying a Used Mercedes-Benz GL Class
Always verify full service history, ideally with Mercedes-Benz main dealers, as neglected maintenance leads to expensive repairs. The GL's complexity means regular servicing is essential - check for evidence of annual services and any outstanding recall work. Inspect the air suspension system thoroughly; listen for compressor noise and check all corners rise and fall correctly, as replacements cost upwards of £1,500 per corner.
Examine the diesel particulate filter status on CDI models, particularly on vehicles used predominantly for short journeys. DPF replacement can exceed £2,000. Check for oil leaks, especially around the engine and gearbox areas, and ensure the seven-speed automatic gearbox shifts smoothly without hesitation or harsh changes.
Interior wear is common given the family-oriented use - inspect all three rows of seats, carpet condition and the boot area for damage. Verify all electrical systems function correctly, including tailgate operation, climate control, parking sensors and cameras. A pre-purchase inspection by a Mercedes specialist is highly recommended given the potential costs of repairs. Check the V5C matches the vehicle and verify MOT history for consistent mileage progression and any patterns of failure.