Factory build sheet

2004 BMW Z4 2.5I

Build 4USBT334-4 · 2.5L 6cyl · Convertible

VIN positions 1 through 8 read 4USBT334 and position 10 reads 4. Those nine characters define this build. Position 9 and positions 11 through 17 differ on every car.

Every Z4 whose VIN starts 4USBT334 and carries 4 in position 10 left the plant with the same engine, transmission, drivetrain and equipment listed below. We know of 62 of them.

  • Decoded Jul 7, 2026
  • 62 known VINs

This configuration is identical to 2004 BMW Z4 2.5I 2.5L 6cyl Convertible (1,047 vehicles). That page carries the full record.

Factory specification

As filed by BMW with NHTSA for this build. Fields the filing does not record are left out entirely — a missing row means no recorded value, not a missing feature.

Engine

Displacement
2.5 L
Cylinders
6
Engine manufacturer
BMW Manufacturing Corp.
Horsepower
184 hp
Fuel type
Gasoline

Body & chassis

Body class
Convertible/Cabriolet
NHTSA body type
PASSENGER CAR
Doors
2
Manufacturer
BMW MANUFACTURER CORPORATION / BMW NORTH AMERICA

Weight rating

GVWR class
Class 1
GVWR
6,000 lb or less

Gross vehicle weight rating is the loaded ceiling set by the manufacturer, not the car's own weight.

The same build, other model years

BMW used the VIN pattern 4USBT334 for 2 model years. Nothing but the year changes between these pages, so the price gap between them is depreciation on an identical car.

How this VIN pattern is read

A 17-character VIN carries two kinds of information: what was built, and which one it is. This page is the first kind — the nine highlighted positions.

Positions Characters What they encode
1–3 4US BMW MANUFACTURER CORPORATION / BMW NORTH AMERICA · World manufacturer identifier
4–8 BT334 Model, body style, engine and restraint system
9 × Check digit — computed per vehicle, not part of the build
10 4 Model year — 2004
11 × Assembly plant
12–17 ×××××× Production sequence number, unique to each vehicle

62 vehicles carry this build

Every VIN we have decoded to 4USBT334-4 shares the specification above.

  • 62 Known VINs

Neighboring configurations

Other factory configurations of the Z4, each with its own build sheet. The set is fixed by the VIN patterns themselves, so it does not shuffle as prices or inventory move.

Keep going

Where this data comes from

Specification fields are decoded from the manufacturer's filings in the NHTSA vPIC database, keyed on VIN positions 1–8 and 10. We publish the filed values as they stand and leave out anything the filing does not record.

Vehicle counts come from the 62 VINs of this build we have seen in dealer inventory. They are a sample of the road population, not a production figure.