Put simply, an Approved Used car is one that we carefully select, based on a visual check that indicates the vehicle in question is in particularly good condition. But that’s not the end of it. The car is then taken to our state-of-the-art workshop and submitted to extensive mechanical testing by our expert technicians. This means that every key component and system is examined and assessed, using a comprehensive checklist.

While performing our Approved Used Check, we scrutinise all pre-owned vehicles that are presented to us – from top to bottom, inside and out. The graphic below gives an indication of what is inspected and tested: wheels, tyres, lights, oil levels, mileage, infotainment features and so on. If you want to learn more, you’ll find a detailed breakdown of our checks below.


Let’s take a look at the automotive areas that we examine and test.

Service Measures & recalls


Service measures relate to an issue (or issues) identified with a particular make and model that requires remedying. While they could refer to a safety matter, it’s not necessarily the case. For instance, they also cover software updates.

If a particular make and model is – or has been – subject to a manufacturer recall, we will identify whether or not this has any bearing on the suitability of the model for resale.

Star Test including Mileage Plausibility Check and EIS key tracks, disable any keys not present


Since we’re an official Mercedes-Benz dealership, the vast majority of our Approved Used cars are produced by this prestigious marque. Accordingly, we use the Mercedes-Benz Star Diagnostic tool to test their pre-owned vehicles (as well as those brought to us for servicing purposes). Essentially, Star Diagnostic is a sophisticated scanner that troubleshoots any problems that might otherwise go unnoticed.

A Mileage Plausibility Check is fairly self-explanatory in that it either confirms or contradicts a car’s stated mileage reading.

Electronic Ignition Switch (EIS) is a significant deterrent against vehicle theft. Our technicians check that all available keys work correctly – and that those which are missing are disabled and therefore cannot be used by unknown parties.

Test and record Fault Codes


A Mercedes Benz Fault Code is a four-digit number, typically prefixed by the letter A, B, C or P, which identifies a problem that needs rectifying. All such instances are tested, recorded and remedied.

Keys/Central Locking


We check that all relevant keys are present, and that central locking is fully operational (regarding doors, boot lid and fuel flap).

Clear Command Unit


Cockpit Management and Data System (COMAND) is the hub for telematics, audio and communications in a Mercedes-Benz automobile. While running full tests, we erase any settings and data pertaining to the previous owner.



A full lighting check is instigated, ensuring that all exterior and interior light sources (high-and-low-beam headlights, hazard lights, indicators, etc.) are operating with full efficiency.

Entertainment system


All installed audio/video features are examined and tested to ensure 100 percent effectiveness. These include, for example, DAB and/or AM/FM radio, CD player, speakers and satellite navigation system.

Operation of hood


If a car has a hood (i.e., it’s a convertible), we’ll ensure that it opens and closes correctly.

Search Now Please browse our high-quality, competitively priced Approved Used range to find your ideal vehicle – and when you do, please don’t hesitate to book your test drive.