Is the BMW 5 Series reliable?
50% of the 26 we inspected scored 60/100 or higher, with an average of 59/100 — it scores a little below average.
26
Cars inspectedreal pre-purchase inspections59/100
Average conditionall cars we check: 61/10050%
In good shape (60+)all cars we check: 56%Across 26 used BMW 5 Seriess we inspected, this model scores a little below average — average condition 59/100 vs 61 for all cars we check. Every number on this page comes from real pre-purchase inspections — cars people were about to buy and paid an independent inspector to go through point by point, engine to underbody, paint depth to error codes. Not owner surveys, not warranty statistics, not forum lore: what we actually found.
What we found
Most common faults
Oil leaks · Engine
62%
Active error codes · Electronic equipment
50%
Tires condition & wear · Brakes and tires
42%
Electronic components issues · Engine
31%
Low coolant / cooling system issues · Engine
27%
Share of inspected BMW 5 Seriess where each item was flagged.
How they score
Excellent 23%
Good 27%
Mediocre 27%
Poor 23%
Hidden history
What the seller might not mention — how often we find it on this model.
81%had a repainted or replaced panelall cars: 75%
0%showed structural repairall cars: 4%
27%had fault codes recently clearedall cars: 23%
More on BMW
Other BMW models we've inspected — or see the full BMW profile.
Straight from recent BMW 5 Series reports
2018 BMW 5 Series · 75k mi — flagged: abnormal noise, smoke, excessive vapor in exhaust, oil leaks. Inspected Jul 16.
2022 BMW 5 Series · 55k mi — flagged: low coolant / cooling system issues, tires condition & wear. Inspected Apr 9.
The bottom line
These cars tend to arrive with plenty of paint work already done and engines that leak oil, throw active error codes, or have cooling problems, plus tires that are often worn. When you stand in front of one, pop the hood first and hunt for oil seepage and coolant issues, then demand a scan for those electronic faults even if codes were recently cleared. Check the tires closely because replacements will come soon. No structural repairs is reassuring, but with so many panels already resprayed you should still examine the bodywork carefully. Use any combination of leaks and codes to negotiate hard or walk if the list gets long.
FAQ
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What are the most common problems on a used BMW 5 Series?
The items we flag most often are oil leaks (62%), active error codes (50%), tires condition & wear (42%). Have these checked before buying.
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Should I worry about cleared fault codes?
On 27% of these cars the ECU codes had been erased shortly before sale, which can hide active faults. Ask for a diagnostic scan and start the engine from cold.
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Based on 26 inspections · updated Aug 22, 2026
