Information taken from http://www.stiffring.com/
What is Stiff Ring ?
Improve Handling, Reduce Noise, Eliminate Vibration
Stiff Ring made of special formula alloy aluminium. It used to correct the car body basic geometry by filling the gap between the sub frame bolts, sub frame and the car body bolt hole. Car engine, transmission, suspension and the body shelf are mounted on the sub frame. Thus, correcting the geometry setup with Stiff Ring, the car handling will be improved significantly.
By eliminating this free gap, vibration to the car chassis & undercarriage will greatly reduce. This helps to protect & prolong the car undercarriage parts life span. Eg: Steering rack, lower arm and etc.
Stiff Ring Installation Points Before After Special Shape Special Shape Special Shape Installation Manual Promotion
With Stiff Ring
Uneven contact surface solved, eliminated spring effect. Perfect geometry setup, offer precise turning and improved handling.
From the picture you can see the bolt used to tighten the sub frame and the car body has a gap in between. This will cause the sub frame and body to be misalign and thus lead to a handling problem and produce noise on the uneven road surface. The uneven contact surface in between chassis and subframe will further produce spring effect and this will compromise the car handling.
With the Stiff Ring in proper place, the gap is filled up to stop the movement of the sub frame and the car body forever and provide ideal alignment between both, as a result of a perfect geometry setup. Uneven surface is filled up by Stiff Ring, thus, spring effect is remove and resulting a comfortable cabin even further improved the car stability.
Stiff Ring
No 6, Jalan Alam Damai 1,
Alam Damai,
56000,
Cheras, Kuala Lumpur, Malaysia.
Tel/Fax: 03-9105 3100
Mobile: 012-670 5167
Email: info@stiffring.com
RM2XX, for 8 pcs front for VW Polo. (Call for latest price)
Firmware upgrades to the Media Device Interface (MDI) are performed using the USB cable and a suitable USB storage device, the upgrade cannot be performed using the iPod/iPhone cable. Detailed instructions and possible error messages are detailed on the firmware version update pages.
Firmware Versions
MDI 0530-0546 KW22-2012 (this is only for vehicles produced from week 22 of 2012 – it will not install on older versions of hardware)
General Notes (for all versions)
- Only USB 2.0 hard drive and usb flash drives should be attached to the USB cable.
- No USB cable extenders should be used, only a USB cable or a USB powered hub.
- The hard drive and flash drives should be formatted with the FAT file system FAT16 for <2GB devices and FAT32 for >2GB devices.
- Complex file structures will create delays in reading the contents.
- Only the first partition is playable if the device has multiple partitions.
- Memory card adapters are not supported.
- MP3, WMA, OOG Vorbis and AAC format files are supported, 3GP and WMA lossless files are not supported. WMA files that are DRM (Digital Rights Management) protected will not play.
- Variable Bit Rate (VBR) MP3′s will not show time remaining.
- DRM protected M4P and similar files will not generally play back from mass storage (USB).
- PLS, B4S, ASX and WPL playlists are supported.
- Playlists must reside in the same directory as the media file.
- MTP (Media Transfer Protocol – displaying the logo ‘PlaysForSure’ and ‘ReadyForVista’) may take several minutes to start playing as they request information such as battery status and memory usage from the MDI.
- Devices can be hot plugged at any time without loss of data.
- The Interface provides 5V for charging (standard USB)
- Folder structure should not exceed 8 folder levels and folders should contain no more than 1000 files.
- The Apple iPod and iPhone should only be connected with the iPod cable with the exception of the iPod Shuffle which can connect through the USB cable.
DIY: MDI update walkthrough
You will need the following parts:
1. MDI to female USB adaptor
vw part # 000 051 446 B
2. USB drive formatted as FAT32
1. MDI to female USB adaptor
vw part # 000 051 446 B
2. USB drive formatted as FAT32