BestCarRank
Bmw

2018 Bmw 640XI

Problems, Recalls & Reliability Report

Excellent Reliability

Quick Summary

The 2018 Bmw 640XI has 5 owner complaints filed with NHTSA — that's 0.1x the segment average of 80. The most common issue is other problems (40% of all complaints), specifically: when opening the panoramic sunroof while driving, the curtain would not retract and sagged. it totally blocks the rear view and there is no way to fix it while driving. also if you have a car seat facing the rear, the curtain would falls onto baby's face and potentially cause suffocation.

5

Total Complaints

0

Recalls Issued

/5

Safety Stars

0.1x

vs Segment Avg

Known Problems

OTHER

2 complaints
40%
  • when opening the Panoramic Sunroof while driving, the curtain would not retract and sagged. It totally blocks the rear view and there is no way to fix it while driving. also if you have a car seat facing the rear, the curtain would falls onto baby's face and potentially cause suffocation
  • I hear a crackling or a popping sound coming from the windshield area as I’m driving. It is irregular and going over bumps seems to trigger it but yesterday as I was driving on a smooth highway with no vehicles nearby I heard a deafeningly loud crack sound. Then I noticed a tiny crack in the windshi
Typical onset: 50K miles Est. repair: $500

when opening the Panoramic Sunroof while driving, the curtain would not retract and sagged. It totally blocks the rear view and there is no way to fix it while driving. also if you have a car seat facing the rear, the curtain would falls onto baby's face and potentially cause suffocation

— NHTSA complaint filing

AIR BAGS

2 complaints
40%
  • Consistent passenger restraint / passenger airbag failure warning. Took vehicle to BMW dealership and was told that the passenger seat must have moisture damage, causing the issue. There have been no spills or leaks in the vehicle. Quoted $2600 to fix. See attached. Vehicle’s safety in question.
  • My BMW's passenger side airbag malfunction light randomly came on and will not turn off. When I went to the dealer, BMW quoted apprx. $3000 to replace the seat sensor mat which they said probably got wet? No water was ever on the seat and no passenger sits there - just my purse. I feel this is a
Typical onset: 50K miles Est. repair: $500

Consistent passenger restraint / passenger airbag failure warning. Took vehicle to BMW dealership and was told that the passenger seat must have moisture damage, causing the issue. There have been no spills or leaks in the vehicle. Quoted $2600 to fix. See attached. Vehicle’s safety in question.

— NHTSA complaint filing

VISIBILITY

1 complaints
20%
  • Moonroof shade failure. Droops, blocking rear window visibility while driving. Happened with no warning. Will bring to service center for inspection.
Typical onset: 50K miles Est. repair: $500

Moonroof shade failure. Droops, blocking rear window visibility while driving. Happened with no warning. Will bring to service center for inspection.

— NHTSA complaint filing

Estimated Repair Costs

OTHER(~50K mi)
$500
AIR BAGS(~50K mi)
$500
VISIBILITY(~50K mi)
$500

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:

  • OTHER: when opening the Panoramic Sunroof while driving, the curtain would not retract and sagged. It totally blocks the rear view and there is no way to fix it while driving. also if you have a car seat facing the rear, the curtain would falls onto baby's face and potentially cause suffocation

    Typically appears around 50K miles. Repair cost ~$500

  • AIR BAGS: Consistent passenger restraint / passenger airbag failure warning. Took vehicle to BMW dealership and was told that the passenger seat must have moisture damage, causing the issue. There have been no spills or leaks in the vehicle. Quoted $2600 to fix. See attached. Vehicle’s safety in question.

    Typically appears around 50K miles. Repair cost ~$500

  • VISIBILITY: Moonroof shade failure. Droops, blocking rear window visibility while driving. Happened with no warning. Will bring to service center for inspection.

    Typically appears around 50K miles. Repair cost ~$500

  • General: Get a pre-purchase inspection from an independent mechanic ($100-$200)

Bmw 640XI — 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

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