Peugeot 508 Saloon (2011-2018) running costs and reliability

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Running costs rating: 4 out of 54.0

Written by Simon McBride Published: 6 June 2019

Miles per pound (mpp)

Reliable fuel consumption data for comparison purposes is not available for this model.

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Fuel economy

A more stringent standard for fuel economy (WLTP) was introduced from September 2017, and this model was not required to undergo that test. Its fuel economy measured under the previous test system was 45 - 80 mpg. However these figures are less likely to be achievable in real world driving and so should never be compared to another car's mpg which was measured under the newer, more realistic WLTP system.

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The most frugal engine in the 508 line-up is 1.6-litre 112bhp engine mated to the six-speed EGC manual gearbox. It has a claimed average fuel economy of 64.2mpg. This engine is also the greenest on the 508 (see below). Servicing costs are competitive.

Fleet managers will be rubbing their hands with glee. The 508 with the 1.6-litre diesel 112bhp engine mated to the six-speed EGC manual gearbox emits just 109g/km of CO2.

Peugeot used to have a reputation for poor reliability but, recently, with the RCZ and the 3008, it has improved drastically on this front. The 508 should be able to keep this good run of form going: the materials are of good quality and have a solid feel to them. Hopefully the electric niggles that blighted former generations of Peugeots are in the past.