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#BS-2004-BMWZ4-F25A

2004 Bmw Z4

Based on reports from 443 owners and 1 recall for this exact model.

Complaints
443
Crashes
2
Fires
2
Recalls
1
TSBs
42
🛑

Preliminary Verdict

Red Flag

Based on 443 complaints, 2 crashes, 2 fires, and 1 recalls. Complaint rate is 6.2x the class average.

See full verdict with buy/skip conditions

Top reported problems

1

chirping noise like cricket from deep dashboard

1 complaints • Severity 4/10

$X,XXX

Preview: What's in your full report

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Mechanic Inspection Checklist

!Check the SteeringHIGH

362 owners reported steering issues — failures commonly reported around 48K miles.

!Inspect the AirbagsMED
Look for symptoms of wear and premature failure
+ 6 more items in full checklistUnlock

Failure Timeline by Mileage

98
0–30K
162
30–60K
97
60–90K
30
90–120K
14
120–150K
2
150K+

Peak failure range: 30–60K miles (162 reports) • Median: 48K miles

Full report: which components fail at each mileageUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Steering (362 reports).

Includes fuel costs, common repairs, and recall riskUnlock

Also in your report

Owner Intelligence

AI-synthesized themes from real complaints

Buyer Lot Checklist

Questions, test drive checks, walk-away triggers

Negotiation Talking Points

Data-backed dollar deductions

Buy / Skip Verdict

Final recommendation with conditions

10 sections total in the full reportUnlock all

Where the complaints fall

Steering362 (82%)
Airbags17 (4%)
Electrical14 (3%)
Steering:electric Power Assist System9 (2%)
Steering:column7 (2%)
Lights6 (1%)
Visibility4 (1%)
Stability Control3 (1%)

2004 Bmw Z4: Known Issues & Problem Areas

Steering Issues

Steering complaints account for 82% of all reports filed for the 2004 Bmw Z4, with 362 owners filing complaints with NHTSA. The median mileage at time of complaint is 48,000 miles, suggesting issues tend to surface around the 48K-mile mark.

Airbags Issues

Airbags complaints account for 4% of all reports filed for the 2004 Bmw Z4, with 17 owners filing complaints with NHTSA. Owners should pay attention to airbags-related symptoms during test drives and pre-purchase inspections.

Electrical Issues

Electrical complaints account for 3% of all reports filed for the 2004 Bmw Z4, with 14 owners filing complaints with NHTSA. Owners should pay attention to electrical-related symptoms during test drives and pre-purchase inspections.

Steering:electric Power Assist System Issues

Steering:electric Power Assist System complaints account for 2% of all reports filed for the 2004 Bmw Z4, with 9 owners filing complaints with NHTSA. Owners should pay attention to steering:electric power assist system-related symptoms during test drives and pre-purchase inspections.

Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.

Complaint trend by year

1
04
5
05
2
06
1
07
13
08
18
09
75
10
60
11
43
12
44
13
33
14
33
15
27
16
11
17
15
18
22
19
23
20
4
21
5
22
3
23
1
24
4
25

Complaints filed with NHTSA by year for the 2004 Bmw Z4. Recent trend: increasing.

Don't negotiate blind — know what this car costs to own

Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict

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Recall History (1 recall)

04V182000May 2004

FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

ON CERTAIN PASSENGER VEHICLES, UNDER CERTAIN ENVIRONMENTAL CONDITIONS, A VAPOR LOCK IN THE FUEL PUMP COULD OCCUR CAUSING THE ENGINE TO STALL. IF THIS WERE TO HAPPEN, THE ENGINE WOULD NOT BE ABLE TO BE RESTARTED FOR APPROXIMATELY 15 TO 20 MINUTES.

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

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2004 Bmw Z4 vs. Class Average (Two Seaters)

This vehicle

443

Class avg

71

6.2x the class average — significantly more complaints than typical two seaters vehicles.

Complaint counts correlate with sales volume — popular vehicles naturally generate more reports. The full report normalizes for this.

About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 443 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 1 recall found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

Other Bmw Z4 Model Years

2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002
View all Bmw Z4 years →

2004 Bmw Z4: Frequently Asked Questions

What is the most common problem with the 2004 Bmw Z4?
The most commonly reported issue with the 2004 Bmw Z4 is related to the steering, with 362 complaints filed with NHTSA.
Is the 2004 Bmw Z4 reliable?
The 2004 Bmw Z4 has 443 complaints, 2 crash reports, and 2 fire reports filed with NHTSA. This is 6.2x the class average — higher than typical for its segment.
How much does it cost to fix 2004 Bmw Z4 problems?
Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.
Does the 2004 Bmw Z4 have any recalls?
Yes, the 2004 Bmw Z4 has 1 recall on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.
What mileage do Bmw Z4 problems start?
Based on 403 complaints with mileage data, the median mileage at time of complaint is 48,000 miles. The highest concentration of reported issues occurs in the 30–60K mile range. The full report breaks down exactly which components fail at each mileage bracket.
What’s in the full report?
10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.
How is this different from free NHTSA data?
NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.
How is this different from Carfax?
Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.
What if the report isn’t useful?
100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.
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10 sections of AI analysis based on 443 owner reports. Know before you buy.

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