Catalin C

Hello everyone!

I was wondering if there is any possibility to upgrade my audio 20 usb to navigation. I did the stupid mistake not to pay attention when I ordered the car at my dealer, telling him that my only preferences are the automatic gearbox and the intelligent LEDs, because I travel a lot and the rest of the upgrades are at his will, with the condition not to exceed 45k euros. It did not cross my mind that I have to tell him that I need navigation too. Well after receiving the car in May 2014, the dealer said that there is no cheap solution anymore, because I have the radio 20 usb and it would be very difficult and expensive to try some workaround ( even more than 4k euros ). Hearing about the outrageous price, I chose to buy a portable navigation, but I don`t really enjoy it so much...
So, after waiting so long, I am asking you guys, if there is any possibility you heard of in the meantime.

Thank you in advance!

rbrylaw

Contact your dealer. You can add the Garmin Map Pocket to your Audio 20 system.

Catalin C

Well they told me sometime ago that it can`t be done, because I don`t have the audio 20 with cd (forgot the code for it) and therefore there is no satellite antenna installed. I have the stock audio 20, only with usb...
Should I try to another dealer?

parkwood

My understanding is all audio 20 are pre wired for navigation and what you need is to buy the garmin map pilot system for installation. This simply comes on an sd card which is installed in the sd card slot. It means you loose the use of the sd card slot for music but as there are 2 usb ports, bluetooth and of course the old fashioned tecnology of cds it is no big deal. Mine came with garmin map pilot as part of the package and it works well, i shall rephrase that it operates as it should but frankly this is my second mercedes navigation system and it is not their forte....tom tom do it better! However i prefer it to having an add on unit or phone especially as it works with the head up display. My main gripe is inputting destinations but it is complicated by being in france saint or sainte and postcodes which cover several villages but sometimes the routes do include narrower roads which are more diect but much slower.

The full command system with the built in media centre operates differently as it has an inbuilt harddrive and the navigation is downloaded from dvd.

Looking at the accessories catalogue mercedes france sent me last week it costs 647 euro for the card the part no for a c class is shown as A205 906 8502. Methinks your dealer does not know what he is talking about unless cars for your market are configured differently i have assumed you are uk based so think you should be ablemto sort this for a few hundred painful but more doable than thousands!

vic viper

I have retrofitted at least 10 Garmin systems, it is an easy install, takes about two hours.

You need a new 12V feed cable for the new USB/SD unit, routed from the passenger footwell, a GPS antenna mounts behind the instrument cluster, a longer GPS antenna Cable and the USB/SD slot unit.

Coding of the HU and IC and inserting a Garmin map SD.

parkwood

Doh sorry just seen you referred to euro so not uk based......apologies

rbrylaw

Yes, contact another dealer or contact MB in your country. For example, if we can't get a straight answer from a dealer in the US, we can contact www.mbusa.com directly.

Catalin C

Thank you all for your answers!

I will try another dealer, maybe they will be more competent, although I doubt that. After all I live in a big city in Germany, the dealer is also a pretty big one, so I expect they should have known if it was possible to make it work just with a card.

@vic viper What you say, makes more sense, because I don`t have a GPS antenna and that`s what the dealer told me too. Unfortunately, I don`t think I`m able to do something like that myself, at least not without instructions step by step.

parkwood

Now i understand your problem and it seems it is a country specific specification issue ...... globalisation is not so homogenous. Here in france all c class have the audio 20 with cd, 2 usb ports and sd card and are pre wired for navigation i.e they obviously have the gps antenna....so my advice is rubbish sorry! Vic as ever has solved the issue but maybe a dealer could do the work needed for less than suggested by your dealer. At least now you know what the issue is.hope you can resolve the issue to your satisfaction.

Catalin C

Well, they told me that I should have payed around 100 euros to have the audio 20 with cd. Which is really disappointing coming from mercedes, but what can I say?
No problem, your answer was not rubbish, it`s my fault for not providing enough information.

@ Vic can you tell me a price range for the retrofit?

vic viper

There is a TS (teilsatz) cointaining antenna, adapter cableand SD-card reader, you will also need the additional feed cable,
also in very early W205 you will need a ground cable, but we are talking around €2 each here

The TS is around €300 if I am not mistaken.

Catalin C

Ok, that means that it will cost around €1000 including everything you said + a garmin sd card and the cost of 2-3 hours of work in a service.

Shouldn`t the dealer be able to do this kind of work? Or should I search for another specialized autoservice? I could try to do it myself, when I`ll have enough time, but I am a little afraid not to mess something up...

vic viper

If you have some basic skills there shouldnt be any problems, the hardest part is the first step wich is removing the centre console alu trim with the armrest opening button.
Once that is removed it is just a matter of loosening screws and unclipping some panels.


Remove passenger side door sill and carpet lining
Remove centre console
Remove armrest
Loosen the HU
Remove cover around steering wheel below instrument cluster
Remove instrument cluster.


Fit antenna behind instrument cluster, fit extra GPS Cable to antenna (90deg bend), remove Purple housing in other end of Cable, route Cable to HU and insertin free slot of blue connector,
insert the feed wire into the pink connector slot 5 in the lower passenger A-pillar, insert other end into SD-Card reader black connector, next to brown ground wire (cant remember slot number)


Code instrument cluster and HU, insert SD card.

Catalin C

It does not sound too difficult, but I will ask the dealer first, if they can do that and what would be the price of it. If they can`t or they will ask again for a high price, I will try to do it myself. I`ve already looked up on the internet and I could not find the teilsatz you are talking about, at least not for the w205. Should I ask the dealer for the TS?

vic viper

TS: A2058204800

12V feed Cable: A2055401614

Catalin C

Ah, I found that TS online sometime ago, but when I check for compatibility with my vehicle identification number it says so:

C 220 BlueTEC

• This accessory model cannot be used in conjunction with your vehicle owing to technical restrictions regarding model year, equipment or engine.

Master_PiT

Hi vic
Im wondering that TS A2058204800 is everythink what i need to have navi? I have audio20cd without code 355, so the part numberA2058204800 includes sd card reader, gps antenna, garmin map sd? Thanks for answer

vic viper

Yes, but you also need the 12V Power Cable

The kit includes Antenna and SD card module, you need to buy the SD-card software as well.

Master_PiT

Thank you for answer.
Why MB parts are so expensive... I can buy card reader for 30euro but cant buy gps antenna so at last i must buy kit from mb ;(
Or maybe you know part number from gps antenna?

firebird90

I was interested in Audio20 to Comand Unit upgrade. My dealer said its not possible to retrofit due to mercedes isn't supplying comand unit as a spare part. There are some sources about retrofit and also come up with some second hand units but it is too much money to risk without a reliable information.

Zand3rs

Had this conversation with my dealer today regarding my wife's 2015 A-class with audio 20 cd.
It has the bigger screen, it has a sd card reader slot on the radio thingie and it reads and play .mp3 (just tested) and still they say its not worth it and it will cost me like 5000 euros to fit.. What the hell

vic viper

If your car has SA code 522 you only need an additional GPS antenna and some coding.

If not youll need a new head unit and it might be expensive.

Zand3rs

Not so technical, u lost me.

I have (505) audio cd with sd card reader and USB connections for my phone.
That is at least what my paper says.

vic viper

With SA code 505 (Radio 20 NTG5, not navigation-enabled) youll need a new head unit, its expensive but I can assure you it wont cost €5000

Zand3rs

They told me it was not worth it because it would cost upwards 5000 euro to have it installed.

Oh well.