2018 Bmw M4
Problems, Recalls & Reliability Report
Quick Summary
The 2018 Bmw M4 has 5 owner complaints filed with NHTSA — that's 0.1x the segment average of 80. The most common issue is fuel system problems (80% of all complaints), specifically: i think the fuel tank has cracked on the upper portion of the tank. i noticed a smell of gas on my way home from filling gas and when i got home i realized there was a puddle of gas sitting underneath my car. i jacked up the car and inspected the underneath and saw nothing, i noticed the gas was lea.
5
Total Complaints
0
Recalls Issued
—/5
Safety Stars
0.1x
vs Segment Avg
Known Problems
FUEL SYSTEM
4 complaints- • I think the fuel tank has cracked on the upper portion of the tank. I noticed a smell of gas on my way home from filling gas and when I got home I realized there was a puddle of gas sitting underneath my car. I jacked up the car and inspected the underneath and saw nothing, I noticed the gas was lea
- • Fuel tank was leaking. I brought it in to BMW of San Antonio who found the left side top area of fuel tank leaking fuel from the sealed portion. Heat caused the top of fuel tank to expand and crack. BMW of SA required me to buy a replacement fuel tank. When I said, if I buy the replacement fuel tank
- • What component or system failed or malfunctioned, and is it available for inspection upon request? Fuel Tank on my BMW under 50k miles started leaking after a fill up. How was your safety or the safety of others put at risk? I didn't notice any leaks at the gas station but once I got home, pulled
“I think the fuel tank has cracked on the upper portion of the tank. I noticed a smell of gas on my way home from filling gas and when I got home I realized there was a puddle of gas sitting underneath my car. I jacked up the car and inspected the underneath and saw nothing, I noticed the gas was lea”
— NHTSA complaint filing
ENGINE
1 complaintsEstimated Repair Costs
Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.
🔍 Pre-Purchase Inspection Checklist
Based on 5 owner complaints for this specific year, here's what to check or ask about:
- ☐FUEL SYSTEM: I think the fuel tank has cracked on the upper portion of the tank. I noticed a smell of gas on my way home from filling gas and when I got home I realized there was a puddle of gas sitting underneath my car. I jacked up the car and inspected the underneath and saw nothing, I noticed the gas was lea
Typically appears around 50K miles. Repair cost ~$500
- ☐ENGINE:
Typically appears around 50K miles. Repair cost ~$500
- ☐General: Get a pre-purchase inspection from an independent mechanic ($100-$200)
Bmw M4 — Year Comparison
How does 2018 compare to other years? Fewer complaints = more reliable.
Full years-to-avoid analysis →NHTSA Safety Rating
No NHTSA safety rating available
At a Glance
- Complaints
- 5
- Recalls
- 0
- Fire reports
- 0
- Crash reports
- 0
- Injury reports
- 0
- Segment avg
- 80
Check a Specific VIN
See recalls for YOUR 2018 Bmw M4