Top BMW 5 Series fixes every owner should know

Cheap, practical fixes for the BMW 5 Series faults you actually meet, with rough costs and what a garage will charge.

BMW 5 Series
Image via Wikipedia, CC-licensed.

TL;DR

The BMW 5 Series faces several common faults that owners should be aware of. Knowing the fixes and associated costs can save time and money. Common issues include electrical problems, oil leaks, turbocharger faults, suspension wear, and cooling system failures, with repair costs varying widely.

Common faults include electrical issues and oil leaks.
DIY fixes can save on labour costs.
Parts costs range from £20 to £300.
Garage labour typically costs £50 to £100 per hour.
Some fixes are temporary patches, others are permanent solutions.

Electrical Issues

Electrical problems are common in the BMW 5 Series, especially in models from 2010 to 2017. Symptoms include malfunctioning windows, lights, and infotainment systems. Checking fuses and connections is a good first step. If issues persist, a faulty control module may be the cause, requiring diagnostics costing around £100 and parts around £200 for replacement.

Oil Leaks

Oil leaks often occur in the N47 and N57 engines, particularly in models from 2007 to 2013. Look for oil spots under the car or low oil levels. Tightening or replacing gaskets can be a DIY job if you are comfortable with basic maintenance. Parts typically cost £30 to £50, while a garage may charge £150 to £250 for the repair.

Turbocharger Problems

Turbocharger issues are more prevalent in the 520d and 530d models from 2008 to 2016. Signs include loss of power and unusual noises. Inspecting for leaks or damage is essential. If replacement is needed, parts can cost £300 to £600, with labour adding another £200 to £400 at a garage.

Suspension Wear

Suspension components wear out over time, particularly in models from 2011 to 2017. Look for uneven tyre wear and a rough ride. Replacing worn shock absorbers or bushings can often be done at home with the right tools. Parts cost between £100 and £300, while garage labour may range from £150 to £300.

Cooling System Failures

Cooling system failures are common in the 5 Series, particularly in models from 2012 to 2018. Watch for overheating and coolant leaks. Checking hoses and the radiator for leaks is advisable. A DIY fix might involve replacing a hose for about £20, while radiator replacement is better suited for a garage, costing around £200 for parts and £100 for labour.

BMW 5 Series MOT record

From 189,287 recorded MOT tests, 17.6% failed.

MOT pass and failure rates by year of first registration
RegisteredTestsFailedMedian mileage
20233114.5%36,897 mi
20222,2249.5%35,797 mi
20211,8268.3%43,509 mi
20204,11610.5%46,023 mi
201915,16011.1%58,943 mi
201818,60211.8%69,312 mi
201714,87713.8%78,452 mi
201615,27612.9%89,042 mi

Most common reasons for failure

  1. Tyre tread depth not in accordance with the requirements37.7%
  2. A suspension pin, bush or joint excessively worn22.5%
  3. A tyre seriously damaged17.5%
  4. A spring or spring component fractured or seriously weakened11.3%
  5. A shock absorber damaged to the extent that it does not function or showing signs of severe leakage11.0%

Figures cover every BMW 5 Series tested in the DVSA dataset, not this specific car. Check a registration for the actual history of one vehicle.

BMW 5 Series official figures

Median across 38 variants on sale, electricity / petrol, petrol electric.

Combined economy
46.3 mpg
WLTP median across variants
CO2 emissions
131 g/km
Sets the first-year tax rate

Official figures for new cars. Real economy varies with driving, load and conditions.

Frequently asked questions

What are common faults with the BMW 5 Series?

Common faults include electrical issues, oil leaks, turbocharger problems, suspension wear, and cooling system failures.

Can I fix these issues myself?

Some issues are DIY-friendly, like replacing bulbs, while others may require professional help.

How much does it cost to fix a BMW 5 Series?

Costs vary, but parts can range from £20 to £300, with garage labour typically between £50 and £100 per hour.

Are these fixes temporary or permanent?

Some fixes are temporary patches, while others can provide a long-term solution.

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Sources