The Background:
S-Cross Alpha comes with Auto-Dimming IRVM whereas all other variants have that normal flip switch to change to Day/Night Mode. Not that I had any problem with flipping the switch for the IRVM in my S-cross Zeta, but I had a strong itch to do some DIY in my car. Hence the Auto-Dimming IRVM project began.
I like any modification to be as inconspicuous as possible and definitely should not cause any warranty or safety issues. So I used all Maruti genuine parts from alpha variant for this project.
I started researching for the parts and finally made this list of parts required for the DIY.
The parts:
1. 84703M54P00: Inside Rear View Mirror: Rs 3615. This part is common for Baleno, Ciaz, and S-cross.
https://boodmo.com/catalog/part-mirr..._view-6788737/
2. 84781M61M00: Lower Cover for IRVM wire. Rs 100. This part is also common for Baleno, Ciaz, and S-Cross.
https://boodmo.com/catalog/part-cove...y_lwr-6788678/
3. 84782M61M00: Upper Cover for the IRVM wiring. Rs 120. This part is specific for S-Cross.
https://boodmo.com/catalog/part-cove...y_upr-6788812/
4. 36820M65M20: Wiring Harness-Dome Lamp for S-cross Alpha. Rs 876. This was not available on Boodmo so was procured through a local Distributor. (The sticker has an MRP of Rs 950 but it showed a price of Rs 876 in their system.)
https://boodmo.com/catalog/part-wire_dome_lamp-6799791/
Total Cost of Parts: Rs 4711.
The DIY.
The Process mainly involves 2 parts- Changing the dome lamp wiring and changing the IRVM. Changing the wiring is 90% of the work. Rest is just a 5 min job.
The Alpha Wiring Harness.
We need to remove the A-Pillar Trim on left side, The glove Box, the sunvisors on both sides, the sunvisor holders, the roof lamp/sunglass holder console, the left front hand grab and the rear roof lamp.
Remove the Glove Box by holding both sides and pressing them together while pulling it out. Remove the Glove Box Damper.
Access the wiring harness under the dash. You can Identify it by the label with Part number 36820M65M30. It has 3 wires attached in it. The Alpha Part Number 36820M65M20 has 5 wires attached. Remove the connector and the clip attached to it.
Remove the A-Pillar Trim.
Remove the Sunvisors by opening one screw for each side.
Remove the Sunvisor Holders by rotating it anticlockwise and then pulling it out.
Open a screw inside the Sunglass Holder to remove the Roof Lamp assembly.
To remove the Hand Grab, pull out the two plastic clips on each end and it should come out easily.
Remove the Rear Lamp by prying it out with a flat screwdriver or something.
Now you should be able to lower the roof lining and access the wiring.
Remove the old wiring.
The only problem I face was to remove the old wiring clips in places where there was no access to the back side of the clips. I ended up breaking the clips in some places, but that didn't matter as new wiring has new clips.
Where I could access the clips on backside they could be easily removed by just pinching the two ends together.
Maybe someone can suggest a better way to remove the clips easily.
Putting in new clips is easy, you just need to push the clips into place and the work is done.
Just fit everything back in reverse order.
Connect the Connector under the dash and check for the working of all lamps. Mic, etc.
Now we have this.
THE IRVM
Both IRVM Side by side. The auto IRVM is slightly larger in size as compared to the manual one.
The Holder for Auto IRVM look different but it fits perfectly on the existing Button.
Remove the Old IRVM by pushing it up. It is held on by a clip, I was unable to move it with the hand so I used a wooden hammer to push it up. Two light strokes and it was out.
Simply Slide the New IRVM onto the button and tighten the screw with a torx driver.
Attach the connector and clip on the wire covers.
Now you can pat your Back for successfully completing the DIY.
The Auto IRVM switches on automatically when the car is started.
Cost of Materials: Rs 4711.
The Joy of Doing-it-Yourself: Priceless