Buying a used BMW 5 Series: what to check before you hand over cash

TL;DR

Before buying a BMW 5 Series, check the V5C for ownership details, ensure a full service history, and look for common issues like electrical faults and oil leaks. A test drive is essential to assess engine and gearbox performance, while reviewing the MOT history can reveal past problems.

Paperwork

Start with the V5C document. Ensure it matches the seller’s details and that the Vehicle Identification Number (VIN) is correct. A full service history is essential as it indicates that the car has been well maintained. Look for stamps from reputable garages.

Bodywork

Inspect the bodywork for signs of rust, dents, or scratches. Pay attention to panel gaps, as uneven gaps may suggest previous accidents. Check for mismatched paint, which can indicate repairs. Look underneath for any signs of corrosion.

Engine Cold-Start

When you start the engine, listen for any unusual noises. Knocking or excessive rattling can indicate serious issues. Allow the engine to reach its normal operating temperature. Check for smoke from the exhaust; blue smoke often indicates oil burning, while black smoke suggests fuel issues.

Test Drive Checklist

During the test drive, assess the performance of the engine. It should deliver power smoothly without hesitation. Pay attention to the gearbox; shifting should be smooth, with no grinding or delays. Test the brakes for responsiveness and listen for any unusual sounds.

Gearbox

Whether automatic or manual, the gearbox should operate smoothly. In an automatic, check for a delay when shifting. In a manual, ensure the clutch engages and disengages properly. Any grinding noises or difficulty changing gears may signal problems.

Electrics

Test all electrical components. Check the lights, windows, and infotainment system. Ensure that the air conditioning works effectively. Faulty electrics can be expensive to repair, so it is essential to verify their condition before purchasing.

MOT History

Review the MOT history for any past failures. This can provide insights into potential ongoing issues. Look for patterns in failures, such as recurring faults. An up-to-date MOT certificate is a good sign, but past records are equally important.

Use Honest Car Check to verify mileage and MOT history. This will help ensure you are making a well-a confident decision.

What people are asking

What is the most common problem with the BMW 5 Series?

The most common problems reported with the BMW 5 Series include electrical issues, oil leaks, and suspension troubles. Owners have noted that while many models are reliable, specific years and engine types may be more prone to these issues.

Is the BMW 5 Series reliable?

Overall, the BMW 5 Series is considered a reliable vehicle, especially when properly maintained. However, some owners have flagged specific models, particularly certain diesel variants, as having more frequent issues, especially with electrical systems and cooling.

Which BMW 5 Series to stay away from?

Buyers in UK communities have flagged the 2010-2017 models, particularly those with diesel engines, as ones to approach with caution due to reported issues with the turbocharger and electrical components. It’s advisable to research specific model years for common faults.

Is the BMW 5 Series high maintenance?

While the BMW 5 Series offers luxury and performance, it can be relatively high maintenance compared to other brands. Owners often mention that parts and servicing can be costly, particularly for older models or those with more complex features.

What owners say

Many owners on r/BMW have shared their experiences regarding the reliability of the BMW 5 Series. Overall, they report that the cars are generally reliable, especially when serviced regularly. However, some users caution that certain engine types, particularly the diesel variants, may experience more issues than petrol engines.

Common faults noted by owners include electrical problems, particularly with the infotainment system and sensors. Owners in r/CarTalkUK have highlighted that while these issues can be frustrating, they are often manageable with proper maintenance and timely repairs.

Value is another topic frequently discussed. Some buyers have mentioned that the BMW 5 Series tends to depreciate faster than competitors, making it a good option for those looking for a luxury vehicle at a more affordable price. However, prospective buyers should be wary of models that have been poorly maintained, as these can lead to higher long-term costs.

What to avoid has also been a common theme among discussions. Many owners suggest steering clear of models that have had multiple previous owners or those with incomplete service histories. These factors can indicate potential hidden problems that may not be immediately apparent during a test drive.