Used BMW 5 Series 2003 - 2010 reliability review
This BMW 5 Series dominated the executive car class for most of its life, and it remains similarly appealing as a used buy.
What should I look for in a used BMW 5 Series?
The run-flat tyres which were fitted as standard to most models can leak air and are expensive to replace. Some owners swap them for conventional tyres to save hassle and improve ride comfort, but BMW advises against this, pointing out that models with bigger wheels were only tested on run flats.
There were a string of recalls on the BMW 5 Series covering the airbag, fuel pump, stability control system, clutch, engine and even a seat heater that can 'toast' its occupant. Check the car you’re thinking of buying against a main dealer's records, which should list any work needed.
Is a used BMW 5 Series reliable?
The 520d was by far the most popular version of this BMW 5 Series when it was new, and consequently is the most common model on the used market. Fortunately, it’s also one of the most reliable.
Data from CAP Derwent, a scheme which pools repair information from some of the UK’s biggest vehicle leasing firms, shows that the 520d can typically cover more than 100,000 miles before there are any problems with the engine, diesel particulate filter or gearbox.
It’s also easier on brakes and electrics than the average executive saloon, although you do need to replace the pollen filter relatively frequently.