E-Class Bluetooth Connectivity

[pmccann229488]

Hi everyone, first post on this forum so apologies if I am asking something that everyone knows about.

I have just bought an E-class from 2005. It seems to have bluetooth. However when I carry out the Bluetooth seach it finds my phone and my wifes seems to connect for a second and then disconnects.

In the phone compartment there is a little plastic traingle but not somewhere where you could plug anything in.

My question, is this some Mercedes implementation of bluetooth or is there something I am doing wrong?

Love the car though!

 

[Gareth]

It doesn't sound like it has a bluetooth unit. That plastic triangle is just a cover for the phone unit connection, you need to pull the cover off and purchase a phone unit to put in there.

 

[pmccann229488]

Cheers for the response but it must have some sort of bluetooth as there is a bluetooth search that finds the 2 phones. It just won't stay connected.

 

[timwood2000]

Welcome to the forum.

I'll have a go at this one first - it sounds like your car has phone prep - which means it is wired to take a phone. The small triangle is probably the cover over the connection where you are supposed to connect the bluetooth cradle (either an MB HFP cradle or an aftermarket alternative called a Viseoo MBU-2000)

However, that doesn't explain how the car is identifying you and your wife's phones if there is no bluetooth cradle installed.

Someone will be along in a minute with a much better answer.....

 

[davidjpowell]

If the car has Comand then this does have Bluetooth functionality which allows you to use a Bluetooth headset. I think that no one has really found a use for that though. You need a Bluetooth SAP or HFP adaptor which clicks into the socket beneath the triangle to get your phone working...

 

[pmccann229488]

Cheers, the car does have Command and telephone pre-wiring. From the responses above it looks like the 2 are not related from a bluetooth perspective.

So I take it the plastic triangle is some sort of cover that lifts off. I then need a bluetooth module to plug into that.

 

[crockers]

Cheers, the car does have Command and telephone pre-wiring. From the responses above it looks like the 2 are not related from a bluetooth perspective.

So I take it the plastic triangle is some sort of cover that lifts off. I then need a bluetooth module to plug into that.

Yes either a bluetooth module or if you prefer, and MB make one, a hard wired cradle that will also recharge the phone and use the external aerial.

What phones are you using - are they rSAP protocol or HFP?

HFP uses the bluetooth connector to connect to Comand the same way as it would to a BT headphone. It therefore uses the power of the phone and the phone's internal aerial.

rSAP transfers the phone to the Comand and shuts down the phone (in effect making the Comand system your phone) this therefore uses the outside aerial for a better reception and doesnt drain the phone's battery. Not many phones have this system - usually restricted to some Nokias and some Siemens.

 

[pmccann229488]

Yes either a bluetooth module or if you prefer, and MB make one, a hard wired cradle that will also recharge the phone and use the external aerial.

What phones are you using - are they rSAP protocol or HFP?

HFP uses the bluetooth connector to connect to Comand the same way as it would to a BT headphone. It therefore uses the power of the phone and the phone's internal aerial.

rSAP transfers the phone to the Comand and shuts down the phone (in effect making the Comand system your phone) this therefore uses the outside aerial for a better reception and doesnt drain the phone's battery. Not many phones have this system - usually restricted to some Nokias and some Siemens.

I have 2 phones and the wife one.
1) Sony Ericcson Xperia (Windows Mobile)
2) Nokia E50
3) Nokia E63

Not sure about the protocols

 

[Diesel Benz]

I have 2 phones and the wife one.
1) Sony Ericcson Xperia (Windows Mobile)
2) Nokia E50
3) Nokia E63

Not sure about the protocols

I've never heard of a Sony Ericsson that supports BT SAP. The Nokia phones would support both HF and SAP.

 

[jaymanek]

I have had several cars with comand which have integrated bluetooth (post 05)... Ive always managed to use my phones without using the optional cradle in the centre console.

Think its UHI?

Im no expert but it can/does work.

Have you put the correct codes in? It asks for a code which you have to (choose any 4 digits) put into the phone and then into comand..

 

[Diesel Benz]

I have had several cars with comand which have integrated bluetooth (post 05)... Ive always managed to use my phones without using the optional cradle in the centre console.

Think its UHI?

Im no expert but it can/does work.

Have you put the correct codes in? It asks for a code which you have to (choose any 4 digits) put into the phone and then into comand..

For any post 05 that cannot be true (just my opinion, I can always be wrong). For the latest models like W204 and from 2008 onwards (I did not check the correct date) when NTG 2.5 came, all head units have integrated BT HF, even the basic Audio 20 in our W204.

Older cars without a BT adapter should not have the HF profile supported, except of course if the car has some after market BT kit.

 

[pmccann229488]

On my Nokia E-50 I can see the car bluetooth as UHI-SN1418.

In the manual it says,

"You will only have access to Bluetooth if your vehicle is fitted with a permanently installed telephone*...

In vehicles with a permanently installed telephone*, a Bluetooth handset is part of the system. The handset communicates with the system via Bluetooth."

Whatever that means!

 

[Diesel Benz]

On my Nokia E-50 I can see the car bluetooth as UHI-SN1418.

In the manual it says,

"You will only have access to Bluetooth if your vehicle is fitted with a permanently installed telephone*...

In vehicles with a permanently installed telephone*, a Bluetooth handset is part of the system. The handset communicates with the system via Bluetooth."

Whatever that means!

The manual must be referring to this phone option:
http://mbclub.co.uk/forums/showthread.php?t=66563

I assume the manual is too old to be aware of UHI BT adapters.