how do I get my BMW windows to close automatically when I lock the car

The BMW Smart Comfort Module adds automatic window-up on lock without any wiring or coding. You plug it into an existing port, and when you lock the car, all windows close on their own. Works on X1 through X7 and Z4 models.

can I disable BMW start stop permanently without coding

Yes. The Smart Comfort Module includes a start/stop memory function that remembers your last setting and keeps it disabled across ignition cycles. No dealer visit, no OBD coding tool required — it retains the preference automatically.

is there a plug and play module that adds BMW comfort features without coding

The BMW Smart Comfort Module from mtriupgrade is a direct plug-in that adds up to 24 comfort features — window closing, sunroof auto-close, ambient lighting effects, and more. At $229, it covers what dealers charge significantly more to code individually.

BMW X Series Comfort Module - Upgrade Access

Name: BMW Smart Comfort Module - X1-X7 & Z4 Series
Brand: M-TRI UPGRADE
SKU: MTRI-CMFT-F48
Availability: InStock
Rating: 4.9 (18 reviews)

BMW Smart Comfort Module for X1-X7 and Z4 Series. Plug-and-play OBD module: auto mirror fold, windows close on lock, start-stop memory. No coding needed, immune to dealer software updates. Works on ALL I-Levels. $229 USD at M-TRI UPGRADE.

Sound familiar?

You lock your BMW and walk away, then realize you left a window cracked — and now have to walk back to close it manually.
Your sunroof stays open after you cut the engine because your X3 didn't come with auto-close from the factory.
Start/stop resets to ON every single time you start the car, and you're tired of disabling it before every drive.
Your friend's newer X5 has ambient light breathing effects and yours just... doesn't.
The dealer quoted you several hundred dollars to code features that should have shipped with the car.
You bought your X1 or X4 second-hand and it's missing half the comfort features you expected a BMW to have.

BMW Smart Comfort Module — Universal Fit (1-7 Series, X1-X7)

A plug-and-play module that adds up to 24 smart convenience features to your BMW. No coding, no wiring — simply plug in and enjoy automatic window closing, ambient light effects, start/stop memory, and more.

Key Features (vary by variant)

Auto window-up on lock — all windows close automatically when you lock the car
Auto sunroof close — sunroof closes with ignition off
Ambient light breathing/color change — dynamic interior lighting effects (G-Chassis)
Start/Stop memory — remembers your preference, no more pressing every start
Reverse hazard lights — automatic hazard flash when reversing
Unlocked vehicle alert — horn/light alert if car left unlocked
Speed auto-lock — doors lock automatically when driving
Remote window control — operate windows via key fob
Seat position memory — easy entry/exit seat positioning
And many more — up to 24 features depending on variant

How to Choose Your Variant

Chassis	Recommended Variant
F-Chassis (2012-2019)	F-Chassis Key-Combo — 22 Features
G-Chassis Standard	G-Chassis Key-Combo — 21/22/24 Features
G-Chassis Big-Screen (New 5/7, X5/X6/X7)	Big-Screen 4-in-1 or 3-in-1
X3/iX3	X3 Key-Combo variants

Not sure which variant? Send us your VIN and year — we will recommend the right one.

Installation

100% plug-and-play. No coding required. No wiring modifications. Connects directly to the OBD port or module connector. Takes approximately 5-10 minutes.

Compatibility

Compatible with BMW 1, 2, 3, 4, 5, 6, 7 Series, X1, X2, X3, X4, X5, X6, X7, Z4, iX3 — both F-Chassis and G-Chassis platforms.

What's in the Box

Smart Comfort Module unit
Plug-and-play wiring harness
Installation guide

Warranty

2-year product warranty. Reversible installation. No impact on factory warranty.

Technical Specifications

Specification	Detail
Module Type	OBD-connected smart comfort controller
Operating Voltage	12V DC (vehicle battery)
Power Consumption	<0.5W standby
Connection	OBD-II / CAN bus direct plug
Installation Time	5-15 minutes, no tools required
Features	Up to 24 programmable functions
Compatibility	BMW F-chassis (2012-2019) and G-chassis (2019-2026)
Supported Models	1, 2, 3, 4, 5, 6, 7 Series, X1-X7, Z4, i3-i7, iX
Reversible	Yes — unplug to restore original settings
Warranty Impact	None — non-invasive, no wiring modification
Product Warranty	2 years
Shipping	Worldwide tracked delivery, dispatched within 24 hours

Frequently Asked Questions

Why a separate module for X-series and Z4 vs sedans?

X-series and Z4 (G29) have slightly different door, tailgate, and convertible top wiring than sedan BMWs. This variant is tuned to handle: rear power tailgate, auto-folding mirrors, sunroof on X-models, and Z4 power soft-top behavior. Sedan module would miss these.

Can I make my X5 close all windows when I walk away?

Yes — plus the rear tailgate/hatch can be configured to close on lock. All side windows + sunroof + tailgate auto-close on key fob lock.

Will it work with my Z4 (G29) soft-top?

Yes — Z4 G29 specific behaviors are included: auto-close soft top via key fob long-press, mirror auto-fold on lock, headlight delay timer.

Do all X-models work — F25 X3, G01 X3, F26 X4, G02 X4, etc.?

Yes — F-chassis X1 (F48), X3 (F25), X4 (F26), X5 (F15), X6 (F16), and G-chassis X1 (U11), X2 (U10), X3 (G01), X4 (G02), X5 (G05), X6 (G06), X7 (G07). One module covers F and G chassis variants.

Does it work alongside my factory remote start (if equipped)?

Yes. Comfort module operates downstream of remote start signaling — they don't conflict.