The software update added region code changing to the Bosch Highline stereo but it could only be changed 5 times.
Smartmods
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Kane Harrison
Highline Firmware Files
Bosch Highline Firmware Update Below are the download links for the Bosch Highline stereo. You have 2 versions of the firmware, each one depends on the stereo version you have. The V1 was updated from V0815 to V0923 and the V2 was updated from V1208 to V1223. There...
Highline Security Code
The facelift 451 from 2011 could be optioned with the Bosch touchscreen stereo. This had a security code
Highline Software Update
The Bosch Highline stereo received an update, what does it do?
Highline Stereo Faults
Highline Faults The 1st reported fault that I heard about was in late 2014. Since then, the faults have been rolling in. Strangely, it's now not just 1 fault but several which shows that the Bosch unit is very unreliable. The faults covered here are: Unit Freezing...
Highline Stereo Hacking
The Highline stereo would be a much better unit if it wasn't for the terrible sat nav software.
The idea is to personalise the unit and force it to use a better navi program.
Highline Stereo Retrofit
So, you bought a Bosch Highline touch screen stereo and want to fit it to your car?
As long as you have a smart that can accommodate a double DIN stereo, you are in luck.
Highline Vs S100
The Bosch Highline stereo is the top of the range model for the facelift 451, how does it fare against a unit costing half the price?
How Do I Know If It’s MHD?
How Can I Tell If The Car Is An MHD? The Badge Originally this was easy, you just looked on the boot panel for the MHD logo. However, people like to de-badge the cars to make them look cleaner. Also, people remove the badge to try and trick people into thinking it's...
How Do I Use The Site
A quick guide to show you how to get the best from this website
How To Clean Your Mats
How Do You Clean Your Mats? You can't stick them in the washing machine and spraying cleaning gear on them makes them wet and smell. Also, what you are doing is wetting it all down and spreading it around the mat. Floor mats are generally made of synthetic fibres so...
How To Clean Your Windows
You thought that moving some dirty water over the windscreen using an old pair of holed underpants was ok? Although that may get rid of some bird shit and the worst of the road grime, the glass isn't clean. Dirty glass collects more dirt as the new sticks to the old....
How To Drive Through Deep Water
Driving Through Deep Water As you know, ICE engines draw in air, inject a small amount of fuel and then compresses it before igniting it. Air is a gas and gas can easily be compressed. Water on the other hand is a liquid and liquids cannot be compressed. So if your...
Hyper Reclining 450 Seats
The 450 drivers seat reclines enough for every day driving but not enough if you want to have a sleep. Do not do this modification and drive around with the seat reclined right back. This is about the maximum that the back will move to as standard. Ain't no one...
Hyper Reclining 451 Seats
Unlike all the other smarts, the 451 seat recline range is quite limited so lets increase that range.
I Can Smell Fuel – Fortwo
Check the rear glass hatch seal isn't damaged. Click. Check the rear boot hatch seal isn't damaged. Click. Check the engine cover is clipped down properly. Check the engine cover seal isn't damaged. Click. 450 Check the fuel filler neck seal isn't damaged. Click....
I Can Smell Fuel – Roadster
Check The Fuel Pump Seal This is the biggest reason for a fuel smell in the cabin after filling the tank. As the tank is filled, the air that is pushed out of the tank by the incoming fuel is normally passed through a charcoal filter, so you don't smell it. However,...
Ignition Free Electric Windows
You can already buy this type of device for about £20 which is a bit of a rip off considering the value of the parts doesn't exceed a quid.
Ignition Key Will Not Turn
The Key Won't Turn Because of the position of the ignition hole on the 450, 451 and Roadster, it's very common for them to get full of shit like dust, cake, sugar, fur, crumbs, bogies, chocolate, finger nails etc. The ignition barrel isn't open underneath so anything...
Ignition Light
I added a little bit of LED side lighting to the ignition surround.