OVERVIEW

Dinan's carbon fiber engine cover is a direct, bolt-on replacement for the factory plastic cover on B58D-equipped G-chassis cars, finished in 2x2 gloss twill carbon fiber with opposing matte carbon fiber and white painted accents (gloss variant) for a finished, purposeful engine bay.

At 2.9 lb versus the OEM cover's 4.1 lb, it also sheds a bit of weight. Install is quick — about 15 minutes — with grommets included for a clean swap.

SPECS

2x2 gloss twill carbon fiber with opposing matte carbon fiber and white painted accents (gloss variant)
2.9 lb vs. 4.1 lb OEM cover
Direct bolt-on replacement for the factory plastic engine cover
Available in gloss or matte finish (this listing covers both — select your variant)
Estimated install time: about 15 minutes

PARTS INCLUDED

Carbon fiber engine cover
Grommets for installation

TECH RESOURCES

Additional Parts Required

None. Dinan specifies no additional hardware — grommets are included for a quick, direct swap.

Installation

Dinan does not publish a downloadable installation PDF for this part; it is a direct swap onto the factory mounting points using the included grommets.

Notes

G01/G02 X3/X4 M40i fitment is limited to 2020+ model years that use the B58D engine — confirm your engine code before ordering.
Gloss and matte are separate part numbers — confirm your finish before ordering.

PART NUMBER

D590-0003 — Gloss Carbon Fiber Engine Cover, BMW B58D
D590-0004 — Matte Carbon Fiber Engine Cover, BMW B58D

VEHICLE APPLICATIONS

Make	Model	Chassis	Engine	Years
BMW	M340i / M340i xDrive	G20	B58D 3.0L Turbocharged I6	2020+
BMW	M440i / M440i xDrive	G22 / G23 / G26	B58D 3.0L Turbocharged I6	2021+
BMW	M240i / M240i xDrive	G42	B58D 3.0L Turbocharged I6	2022+
BMW	X3 M40i (xDrive)	G01	B58D 3.0L Turbocharged I6	2020–2026
BMW	X4 M40i (xDrive)	G02	B58D 3.0L Turbocharged I6	2020–2026
BMW	Z4 M40i	G29	B58D 3.0L Turbocharged I6	2020–2026