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Research · Two Seaters

1998 BMW Z3 RoadsterRecalls, problems, MPG & safety

NHTSA lists 0 safety recalls and 19 owner complaints for the 1998 BMW Z3 Roadster. Most complaints involve structure (7) and air bags (3). The EPA rates it 18–24 mpg combined.

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Combined MPG
18–24mpg
EPA · 4 versions
NHTSA overall
—
Not rated by NCAP
Safety recalls
0campaigns
NHTSA
Owner complaints
19
Top: structure
Fuel cost / yr
$2,700est.
EPA estimate, best version
01 —Recalls

Safety recalls

NHTSA campaigns for this model year
0 recalls found in NHTSA data for the 1998 BMW Z3 Roadster as of Oct 30, 2026.
Data from NHTSA Recalls API · synced Oct 30, 2026NHTSA vehicle page
02 —Complaints

Owner complaints by component

19 complaints filed with NHTSA · Aug 2002 – Jun 2017
  1. Structure7
  2. Air bags3
  3. Suspension2
  4. Power train2
  5. Seats2
  6. Tires2
  7. Fuel system, gasoline1
  8. Electronic stability control1

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

By model year

Complaints for each Z3 Roadster model year we’ve synced.

View as table
Model yearNHTSA complaints
199819
200017
20018
Crashes reported
1
Fires reported
0
Injuries reported
1
Deaths reported
0
Data from NHTSA Complaints API · synced Oct 30, 2026 · Full problem breakdownNHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Structure

7 reports
“TL* THE CONTACT OWNS A 1998 BMW Z3M ROADSTER. THE CONTACT WAS TRAVELING 25 MPH WHEN THE REAR FRAME OF THE VEHICLE FRACTURED COMPLETELY. THE CONTACT TOWED THE VEHICLE TO THE DEALER WHERE THEY ADVISED THAT THE FRAME METAL WAS EXTREMELY WEAK AND CAUSED THE FRAME TO DROP AND THE REAR AXLE TO FRACTURE FROM THE VEHICLE. THE CONTACT WAS CONCERNED BECAUSE HE COULD HAVE BEEN INVOLVED IN A CRASH IF HE WERE TRAVELING FASTER IN THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE CURRENT AND FAILURE MILEAGE WAS 50,000.”
Owner complaint to NHTSAFiled Apr 25, 2011StructureODI 10397393

Air bags

3 reports
“THE AIRBAG FAULT LIGHT CAME ON IN OUR 1998 BMW Z3 (WITH LESS THAN 16,000 MILES ON THE ODOMETER), INDICATING THE AIRBAG (OR AIRBAGS) AND SEAT BELT TENSIONERS WERE NO LONGER FUNCTIONING. THE DEALER SERVICE REPRESENTATIVE SAID THIS WAS "A COMMON PROBLEM" WITH THIS MODEL AND TOLD US EXACTLY WHAT MOST LIKELY CAUSE OF THE PROBLEM PRIOR TO ANY DIAGNOSTICS'THAT THERE WAS A FAULT IN THE SEATBELT LATCH AND WIRING THAT CAUSED 'HIGH RESISTANCE'. THE COST OF REPAIRS WAS $825. A GOOGLE SEARCH SHOWS THIS SAME PROBLEM IS ESSENTIALLY UBIQUITOUS. I SEARCHED FOR 'BMW Z3 AIRBAG LIGHT ON', AND I GOT NEARLY 40,000 HITS. LOOKING RANDOMLY AT SOME OF THESE HITS, I FIND EACH CONTAINS MULTIPLE ACTUAL INSTANCES OF THIS PROBLEM OCCURRING. FOR EXAMPLE, THE FIRST RESULT RETURNED (HTTP://WWW.AUTOMOTIVEFORUMS.COM/T145936-Z3_AIRBAG_SENSORS.HTML) INDICATED AT LEAST 6 VEHICLES WITH THIS EXACT SAME PROBLEM. THUS, I WOULD ESTIMATE FROM THE GOOGLE SEARCH THAT THIS PROBLEM HAS AFFECTED 100,000+ VEHICLES JUST COUNTING THOSE POSTED ON THE INTERNET'PLUS ALL OF THOSE THAT ARE NOT POSTED ON THE INTERNET. THE BMW Z3 WAS A LOW VOLUME VEHICLE, SO IT WOULD APPEAR THIS SIGNIFICANT SAFETY DEFECT AFFECTS A VERY…”
Owner complaint to NHTSAFiled Jun 13, 2010Air bagsODI 10336091

Suspension

2 reports
“A LOUD CLUNKING SOUND COMING FROM REAR END WAS NOTICED. UPON INSPECTION, BY BMW DEALERSHIP IT WAS DETERMINED THE REAR SUBFRAME HOLDING REAR DIFFERENTIAL HAS SEPARATED FROM THE BODY OF THE VEHICLE (SPOT WELD FAILURE). I WAS TOLD IT IS EXTREMELY DANGEROUS TO DRIVE AND TO FIX IMMEDIATELY. UPON FURTHER RESEARCH, THIS APPEARS TO BE A VERY COMMON PROBLEM WITH THESE VEHICLES. HIGHER DISPLACEMENT MODELS ARE A HIGHER OCCURRENCE DUE TO CREATING MORE TORQUE ON THE REAR DIFFERENTIAL BRACKET. MINE IS THE M VERSION WHICH IS ALMOST A GUARANTEED FAILURE.”
Owner complaint to NHTSAFiled Jun 17, 2017SuspensionODI 10995656
All 1998 Z3 Roadster problemsSend a problem to a mechanic on findmechanic.ai
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 30, 2026
04 —Key specs

Engines, transmissions & drive

4 versions rated by the EPA
EPA class
Two Seaters
Engines
1.9L 4-cyl · 2.8L 6-cyl
Transmissions
Manual 5-spd · Automatic 4-spd
Drive
Rear-Wheel Drive
Fuel
Regular Gasoline

Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.

Data from EPA fueleconomy.gov · synced Oct 30, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
Z3 Roadster
Man 5-spd, 4 cyl, 1.9 L · Rear-Wheel Drive
202924$2,700370
Z3 Roadster
Auto 4-spd, 4 cyl, 1.9 L · Rear-Wheel Drive
202823$2,800386
Z3 Roadster
Man 5-spd, 6 cyl, 2.8 L · Rear-Wheel Drive
172419$3,400468
Z3 Roadster
Auto 4-spd, 6 cyl, 2.8 L · Rear-Wheel Drive
162218$3,550494
  • Z3 Roadster
    Man 5-spd, 4 cyl, 1.9 L
    20 city · 29 hwy · $2,700/yr
    24
    mpg comb.
  • Z3 Roadster
    Auto 4-spd, 4 cyl, 1.9 L
    20 city · 28 hwy · $2,800/yr
    23
    mpg comb.
  • Z3 Roadster
    Man 5-spd, 6 cyl, 2.8 L
    17 city · 24 hwy · $3,400/yr
    19
    mpg comb.
  • Z3 Roadster
    Auto 4-spd, 6 cyl, 2.8 L
    16 city · 22 hwy · $3,550/yr
    18
    mpg comb.
Estimate your fuel costCost of ownership
Data from EPA fueleconomy.gov · synced Oct 30, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

New Car Assessment Program
NHTSA has not published 5-Star Safety Ratings for the 1998 BMW Z3 Roadster as of Oct 30, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Oct 30, 2026
07 —Maintenance

Maintenance basics

General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
ItemMilesTimeNote
Engine oil & filter5,000–10,000 mi6–12 monthsFollow the oil-life monitor if fitted
Tire rotation5,000–7,500 miEvery oil changeCheck pressure monthly
Engine air filter15,000–30,000 mi1–2 yearsSooner in dusty areas
Cabin air filter15,000–25,000 mi1–2 years
Brake fluid—2–3 yearsAbsorbs moisture over time
Coolant60,000–100,000 mi5–10 yearsLong-life coolants last longer
Spark plugs60,000–100,000 mi—Iridium/platinum plugs at the long end
12V battery—3–5 yearsHeat shortens battery life
  • Engine oil & filter5,000–10,000 mi
    6–12 months
  • Tire rotation5,000–7,500 mi
    Every oil change
  • Engine air filter15,000–30,000 mi
    1–2 years
  • Cabin air filter15,000–25,000 mi
    1–2 years
  • Brake fluid—
    2–3 years
  • Coolant60,000–100,000 mi
    5–10 years
  • Spark plugs60,000–100,000 mi
    —
  • 12V battery—
    3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
09 —FAQ

1998 Z3 Roadster questions

How many recalls does the 1998 BMW Z3 Roadster have?

0 recalls found in NHTSA data as of Oct 30, 2026.

What are the most common 1998 BMW Z3 Roadster problems?

Owners filed 19 complaints with NHTSA. The most-cited components are structure (7), air bags (3), suspension (2). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 1998 BMW Z3 Roadster get?

The EPA rates the 1998 BMW Z3 Roadster at 18–24 mpg combined, depending on engine and drivetrain (4 versions rated).

Data from NHTSA & EPA · synced Oct 30, 2026