Problems · NHTSA complaints

2020 BMW M5 problems

Owners filed 2 complaints about the 2020 BMW M5 with NHTSA between May 2024 and Aug 2026. The most-cited component is engine (2).

Complaints
2
Filed with NHTSA
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Engine2
  2. Power train1
  3. Electrical system1

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 9, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20241
20250
20261

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Engine

2 reports
“2020 BMW M5 a metal-shavings engine failure at highway speed is a safety event. I had total catastrophic engine failure at less than 50,000 miles. No warning lights, found metal shavings in the engine system and engine needs complete replacement. I discovered that the very first and most important service at 1200 miles was never performed by BMW of [XXX]. It has been detailed by managers in writing. They still sold me the car XXX without disclosing the risks to purchase the car without this service being done. The repair is estimated to exceed $97,000 in repairs. I believe there was neglect, wrongdoing, and fraud done by BMW of [XXX] and BMW of [XXX] since they admitted to this neglect of service and never warmed me of the know risks to purchasing a car like this. I have proof in writing.”
Owner complaint to NHTSAFiled Aug 29, 2026Power train, Electrical system, EngineODI 11760549

Electrical system

1 report
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.