Headlight Switch Knob for BMW vehicle - image

Files (1)

Z3_Headlight_Knob.stl

STL

927.8 KB

Print plan

Exact totals not supplied

Print setup plan

Useful setup guidance without pretending STL byte size can predict filament, cost, or print time.

1 model file

Material plan

PETG / ASA

Published material guidance; still check heat, UV, load, and printer compatibility.

Starting setup

25% infill

A planning starting point only; wall count, orientation, and geometry often matter more than infill.

Final totals

Confirm in slicer

Slice the selected model with your final material, orientation, walls, and supports.

Saved setup guidance is used for material, infill, support, and per-file recommendation text; editable numbers are planning estimates only.

Reference shelf

Recommended filament for this print

Product references matched to the published material guidance. Confirm diameter, heat resistance, colour, and printer compatibility.

Referenced item	What to verify	Price & availability
PETG filamentAmazon · Affiliate link	Amazon product page for 1.75 mm PETG; confirm colour, spool size, print temperature, seller, and delivery region.	Check price at Amazon
ASA filamentAmazon · Affiliate link	Amazon product page for 1.75 mm ASA; use an enclosure and suitable ventilation, and confirm seller and regional availability.	Check price at Amazon

Affiliate disclosure: if you buy through an eligible link, 3DPrintedCarPart may earn a commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Confirm product specifications, compatibility, seller terms, and vehicle safety before ordering or using anything. Amazon may redirect you to a nearby supported store; otherwise the original Amazon.com page remains available.

Unsure which one fits? Read the automotive filament guide.

Knobs/Buttons

Headlight Switch Knob for BMW vehicle

0 downloads68 views0 quality score

Print this part

Use the part context as a starting point, then confirm geometry-dependent values in your slicer.

Files

1 hosted model file

STL

Material start

PETG or ASA for durability in a car environment

Saved part guidance

Strength start

20-30% infill for a balance between weight and strength

Saved part guidance

Orientation / supports

verify in slicer

Exact totals

Slice for grams + time

Model geometry and final settings determine both

Vehicle exposure

Cabin/interior use; avoid high-heat zones

Open the STL, 3MF, or OBJ model in your slicer before printing. Exact grams, time, and final support placement come from the actual slice. Test-fit and heat-check the part before installing it in a vehicle.

License & use

CC BY

Commercial use allowed

Attribution required

The file license permits commercial reuse, subject to any applicable attribution or share-alike terms. License status does not verify vehicle fitment, OEM rights, design patents, or safety.

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Description

The headlight switch knob broke in my Z3 and I didn't feel like spending the $50 or whatever it is for the chrome version of the parts. This design is accurate to the original with respect to the knob body, but I have never had the 'cap' or 'cover' from the switch. So I guessed. It should be close. Let's just say that this looks and feels better than the disintegrated OEM part. The model replaces the following BMW part numbers (in pairs, since you only have one of the first and one of the second): 01 LIGHT SWITCH BUTTON 1 61318389547 01 LIGHT SWITCH BUTTON CHROM 1 61318389880 01 LIGHT SWITCH BUTTON ALUMINIUM 1 61318401270 02 COVER FOR LIGHT SWITCH KNOB 1 61318400003 02 COVER FOR LIGHT SWITCH KNOB CHROM 1 61318400004 02 COVER FOR LIGHT SWITCH KNOB ALUMINIUM 1 61318401196 (Part numbers and descriptions taken directly from RealOEM, which is actually bae; thanks RealOEM) To make this work, you're going to need a standard M5-0.8 hex nut. Nothing special. I walked into Home Depot and got a bag of two for <$0.60. The hex shape cutout should fit your nut with a little extra space for the glue. I used superglue. I printed this model on my Prusa i3 MK2S at 0.15mm layer height and standard black PLA. Best of luck.