2014 Mercedes-Benz A200 (W176)

So after saying goodbye to my C350 earlier this year after a short three months, I switched back to my Audi, but last month got my hands on a new A200. Which I’ll most likely be driving for the next year. And it’s nice.

The model I have is pretty much stock. It’s got the 7 Speed dual clutch auto (7G-DCT) (although I would have preferred a manual), and cruise-control, but otherwise as stock as it gets. It does not have a spare tyre, not even a space-saver. Which isn’t great for our roads, but I’m hoping to not have to test out the run-flats in any case. They didn’t have stock of tow-bars when I ordered it, but a Westfalia fold-away-able ball was installed shortly thereafter.

benz badge

The car goes well. Front-wheel drive, with a 1.6 litre turbo-charged engine producing somewhere around 115kw. A good 20 more than my Audi, although it does weigh an extra 200kg, putting it at close to 1.5tons. It still manages a 0-100 speed of 8.6s though and has plenty of umph for overtaking.

The car itself is comfortable. At 6’2″ I fit in quite nicely, with enough space for an equally sized person to sit behind me (although preferably only two people in the back). Manual seat adjustments are adequate along with the steering adjustment, pretty standard on current day cars. I’ll be doing a 1,000km trip at the end of the year so I’ll see what it’s like for extended periods then, up till now I’ve done a 200km trip without hassle.

2015-01-07 19.33.46

Fuel economy is not as good as I expected. Obviously how you drive does affect this. The car only has a 50l tank, which is a bit frustrating for me coming from the 65l in my Audi. Around town I’m usually only getting around 10l/100km, maybe slightly less. If I put some effort into it I can bring that down to 9. This is not necessarily only my driving style, but the type of driving I have to do.

On the open road I managed 7.9l/100km, but I’m quite sure I can improve on that, and will be testing it out again this coming weekend (EDIT: Got it down to 6.8l/100km). This is better than what my Audi got :)

A200 Instrument Panel

In typical Mercedes style, the ride itself is comfortable and rattles and wind-noise are minimal. At highway cruising speeds you don’t notice anything and the car feels like it can handle much higher speeds with ease. With a top speed of 220km/h, it’d be nice to get the car on a track some time.

The steering wheel, radio and much of the controls are straight out of the previous C-Class (204). So I felt right at home. Centre console and armrest are slightly different, with the gear lever now located off the steering column on the right, following the latest Merc trend. This gives a bit extra space for compartments. There are also small compartments in front of each of the front seats, as well as a nice sunglasses pocket by the review mirror which my sunglasses don’t fit in.

keylights

A moderate boot can be expanded immensely by the 60-40 split rear seats, large enough for a MTB bike without its wheels, or large TV. Ski’s may still provide a challenge, alas not one I will face. Climate control is a R7 500 extra, something I didn’t think I’d miss until I started driving this car. It handles well enough, sticks nicely in the corners, although body roll is noticeable at speed. It has a sensor for if it thinks you are driving too close behind someone. A red light comes on on the dash. And it beeps at you if it thinks you are going to crash into them. It has beeped at me many times, not always because of my ‘bad’ driving style at the time.

It’s a nice car. I’m really enjoying it. Visibility isn’t great, but I suspect the car will handle a roll quite well with the massive C pillars. Fuel consumption isn’t as good as I was expecting. I would have to spend more time in the Audi and BMW competitors before I could make a decision, But the ‘new’ A-class is definitely a hit and well up to standard.

Logitech Z506 demise and disassembly

Back in varsity I had a set of 2.1 channel Logitech speakers. They were great, simple and provided good sound. Alas one day they stopped working, never found out why, even after taking it apart (one had to saw open the wooden sub box) and getting several friends and family members to analyse it. In any case, I ended up purchasing a Logitech Z506 5.1ch set to replace them.

And they’ve done me well. Until recently. I’ve had them for about 3 years; I would have expected a longer life but I fear the recent spate of load shedding (and related grid instability) might have given them a knock (oddly I think it’s what happened to my last set too).

Anyway, they stopped working unexpectedly, so logically I took them apart. You can see the process below. It’s quite nicely put together, but also not with the intent of it being taken apart again later.

In any case I looked around a bit and saw that what I still believe is a fuse was not letting any current through (marked T3.15A250V). So, lacking a replacement fuse, I shorted the fuse and thought I’d fixed the problem, alas I fear there was another reason why the fuse had gone as I plugged the power back in.

Cue loud bang, my lights going out and enough flames to give me a fright. 10 o’clock at night, I made my way to my tripboard and reset the plugs, unfortunately I had also managed to trip the switch in my landlord’s house. Fortunately they were still awake and didn’t ask too many questions as I asked if I could check their tripboard quickly.

So I’m once again in the market for new speakers (edit, managed to revive them, see below), but for others who might have more luck than me, here are instructions to disassemble.

Unscrew the 10 screws on the backpanel. Unscrew the 4 screws mounting the speaker to the bottom of the box. Pull the speaker out. You will notice bendy wire clips stapled to the case holding cables in place, loosen these as required.

Undo screws on back and bottom of speaker

Undo screws on back and bottom of speaker

If you have small hands you can unplug the speaker, but otherwise rest it on top. The backpanel slides out, but there is a bit of double-sided tape holding it in place at the back under the panel. You can release this by pulling the PC-Board away from the side of the box. You can then pull the backpanel and PCB out. This will let you unplug the two plugs on the power supply.

Plugs to unscrew and mounting points

Plugs to unscrew and mounting points

With the main board out, you can loosen the two screws holding the PSU in place and slide it out.

partsSimple as that, above you can see where the fuse I shorted was, and also a bit of the transformer which I think I burnt out. Oops :(

Update:
A bit of searching led me to believe that I could fit a replacement power supply and all would be alright. I had a spare laptop power supply (90W, 19V) lying around, and I wired this up. So far it has been running like that for several months.

It is also possible to buy direct replacement boards, for example here.

SA Driver’s Licence codes, old vs new

It constantly frustrates me how although since 1998 (16 years ago) the official licence system has made use of a system of letters to distinguish between different licence codes, to this day, people still, on a regular basis, refer to licence codes by the old number system.

To make things easier for people who are getting confused, I’ve pulled the data from the Road Traffic Act and put it together here, first the learner’s licence, then driver’s licence info. The system has undergone several changes over the decades and the time frame that each refers to is specified at the top of each column

I’ve also added a copy of a current driver’s licence to show what the current codes refer to.

Learner’s Licence system

learner’s licence issued before 1 March 1998 New/Current Learner’s Licence What this currently entails
Code 01, 02, 03, 04 and 15 Code 1 Motorbike / trike
Code 05, 06, 07, 08 Code 2 LMV
code 10, 11, 13 and 14 Code 3 HMV or LMV

Driver’s Licence

Current [1995 – 1998] [01.06.1990 – 1995) [31.12.1985 – 01.06.1990) [01.02.1972 – 31.12.1985) [01.01.1967 – 01.02.1972) [… – 01.01.1967)
A1 Code 01 Code 01 Code 01 Code 01 Code 01 Code 01
A Code 15 Code 02
Code 15
Code 03
Code 04
Code 02
Code 03
Code 04
Code 02
Code 03
Code 04
Code 02
Code 03
Code 02
Code 03
B Code 05
Code 07
Code 05
Code 07
Code 05
Code 07
Code 05
Code 07
agricultural / industrial vehicles
EB Code 08 Code 08 Code 08 Code 08 Code 08 Code 08
EC1 Code 10 Code 10 Code 10 Code 9
EC Code 11
Code 13
Code 14
Code 11
Code 13
Code 14
Code 11
Code 13
Code 14
Code 10
Code 11
Code 10
Code 11
Code 10
SA Driver's Licence

Current SA driver’s licence codes

A code 6 licence could be given for any category licence referring to an electrically powered vehicle.
A code 12 licence could be given for any category licence referring to a vehicle that is specially adapted for use by a physically disabled person.

All info is from the Road Traffic Act, Regulations, Chapter V: Fitness of Drivers, Part ll: Learner’s and driving licences and it goes into a lot more detail than I’ve displayed here. You can click the following terms if you would like more info on the SA Driver’s licence system or the Professional Driver’s Permit.

Videographing

I really enjoy Youtube, the never ending selection of interesting and entertaining videos is great. Of particular interest to me are the likes of CGPGrey, VSauce and Veritasium, with explanatory videos on a wide variety of topics. It’s always been something at the back of my mind to try out. But not being the world’s greatest producer, I’ve never given it a try.

Last week (I wrote this several weeks ago) Veritasium released a video showing 5 peculiar traits of nature, with the promise of explaining them in upcoming weeks, as well as the challenge to try figure them out for oneself and to post this online. The first subject was something I’d seen demonstrated in a previous episode of QI, and figured this was my chance to test out my viedographing (my dictionary doesn’t like that word and instead suggests rephotographing as the nearest real word) skills.

I believed I had the basic understanding of the concept at hand, got my GoPro, Cellphone and webcam setup to get some footage. Prepared some lighting and a pen and paper and figured the principle is fairly straightforward, and I’d be able to explain it in 5 minutes flat, one single shoot. Oh boy…

About three minutes in to my production I started to realise my failings. No script to work to meant I kept on having to think of what came next, and the examples I wanted to use took time to prepare as I tried to remember some of the basics of 2nd year Strength of Materials. I somehow developed a sore throat in that short space of time, and silences not interrupted by my throat-clearing were interspersed with long thinking “Umm”s.

I stopped recording after three short minutes, not even halfway through my expected explanation. Cutting my losses and reviewing the horror of my creation. Ignoring the terrible quality of the resulting video, the experience gave me a very good understanding of why I hadn’t tried this before, and an even greater appreciation for those who do this successfully. But it is definitely something I want to try again, maybe with a bit more preparation.