Dan_2040

I have blind spot mirrors by default. I want to add power folding ones that also have the blind spot in them. Is it possible to get power folding and Blind spot mirrors? If so, will the modules in the doors need to be replaced as well?
My current modules are:
A212 820 37 85 right
A212 820 34 85 left

Car is 2010 E550.

Thanks.

CaliBenzDriver

yes, DCU is the one managing mirror power. I am sure this is doable but tricky.
The mirror is easy, the control module not so much.

Good luck researching the specific DCU PN# upgrade.

Then is it going to interface well with your chassis year ??


This could be a very popular project with fixed mirror guys.
🤞
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Arrie

The blind spot monitoring has nothing to do with the mirror other than the triangle displayed in red in the mirror when some other car is in the blind spot. The sensors that monitor your blind spots are located at the corners of the rear bumper. I just had a sensor go bad and had it replaced last weekend.

Folding mirror has nothing to do with blind spot monitoring, like I said, it is just an indicator light in the mirror so you can keep all mirror glass etc. but you need to find hardware to fold the mirrors, which is not easy. Might be easier to trade your car against one with that feature...?

I have the same car as you with 190 000 miles on it (highway miles) and kbb value for the car is a whopping $3000 - $4500...!!. It would be difficult to find these mirrors with "to make sense price", but please respond back if you find them as I'd like to have the feature too like I have it in my 2012 S550.

How do you like the power of the real 5.5 liter engine? I have the SPRINT BOOSTER installed and it does amazing things in this car. Throttle lag is gone, and it makes the car way more fun to drive.

I am thinking to install the Sprint Booster also on my 2012 S550 but it has plenty power with it's twin turbos so I'm not sure I need it.

I change oil every 5000 miles and I recommend that to everybody. It is the cheapest "insurance" for the engine.

S-Prihadi

oohh, so not all W212 get folding mirrors ?
Damn I thought it would be standard on all W212 since 2009.

Dan_2040

Yea, I'm aware what and how the blind spot works, but it does need that plug and power to provide to the indicator on the mirror which I have, so my main question is will every power folding mirror module for the door that will be sourced from out side of US would have that plug and power the indicator for BS. I have a devious idea to get power folding mirrors and Frankenstein one complete mirror (one each side) that will have it all. Playing a bit with the wiring and swapping some pins on the connectors. Just need to be sure which modules I need to get. As a matter of fact I already got a pair of folding mirrors to try this out, but no modules.

To your second question. I do find it ok, but there is a bit of lag and gradual acceleration until you floor it, kick down as they call it. I Actually never heard of this SPRINT BOOSTER thingamajig, PM me if you have more info. I specifically opted out of having turbos, just one thing I don't need to care and think about it breaking. I know the engine can be ECU tuned, for better performance and even slightly better fuel efficiency, will probably do that down the line. I also don't want to cheap out on oil changes 5-6k miles is plenty enough

JettaRed

iTrader: (1)

The following are just my opinions. (That's a stupid thing to say. Everything I say is usually my opinion.)

1. Folding mirrors are cool, but don't really impress anyone. I have them on my SL and I use them to visually check if I locked my car. But that's about it.
2. I think Sprint Booster is like Pedal Commander. They both affect pedal response/sensitivity, but don't increase power. They can actually affect drivability. I have two Pedal Commanders -- one for a 2004 SL500 and one for a 2014 C350. The SL500 is sold and I took it out of the C350. Not sure if either would fit your car. I can try to find out. They are about $300 new on Amazon but are cheaper on the pedalcommander.com website. (EDIT)
3. ECU tuning on a NA car will provide limited benefits, usually not worth the price of the tune. I did this for the SL500 and could NOT tell any difference. Didn't bother with the C350 because I think a tune MAYBE added 17hp and was like $600 -- not worth it.

EDIT: Actually, the Pedal Commander for my C350 is the same for your E550 (PC43). If interested, PM me.

retna7

I completed the folding mirror retrofit on my 2010 a few years ago.

Purchased the folding mirrors and door switch on eBay from overseas and contacted the man in this video for remote programming using Vediamo.

Works like a charm. Used the same door modules. Only required the mirrors and the switch.

Not much folding in the folding mirror but enough to make a difference in the garage.

jimyj

Yes, it is possible to add power folding mirrors that also have blind spot detection for your 2010 E550. However, you may need to replace the door modules to accommodate the new features. The current modules you have, A212 820 37 85 (right) and A212 820 34 85 (left), might not support power folding functionality or at a min you will have to code them with vediamo.

Dan_2040

An update: coding is done with vediamo. Tried basic folding mirrors on current modules and don't work on locking the car. Hadn't come to dismantling the door to add the button panel yet, not sure if it is required for it to work on locking.

Left Coast Geek

its quite possible, even likely, that multiple modules need coding for any given feature, and if those codings aren't all matched, odd things happen.

Dan_2040

Do you have the blind spot function with indicator on the mirrors? I know this guy's tutorials. But what I want is to preserve my blind spot indicators and have power folding at the same time. For which I am trying to understand do I need a specific modules or just the regular ones for the power folding that he uses (will they work with the blind spot indicators)

retna7

Yes - all functions work as usual.

Blind spot and heated mirror functions operate the same as before the retrofit.

BenzV12

I have also seen aftermarket blind sport system for the W212s in various sites . However, I have no idea whether or not those are as much reliable as Mercedes Benz's stock systems at all.

Power folding mirrors are cool ,once you are used to them you always want them in other cars, it's the way it works for me anyway

Dan_2040

Did you actually had to swap the modules in the doors? If so did you use the same ones he was using in the video?
PN:
A 212 900 40 14
A 212 900 43 14

strife

i have done folding mirrors on a 2013 US 350, but I have read several times that folding mirrors won’t work with 2009-2010 (early) 212 door modules. I don’t know if this is a hardware or firmware limitation. AFAIK, BTW, no US W212 before 2014 actually came factory equipped with these folding mirrors.

i plan, eventually, to do good aftermarket blind spot sensing. However, I found that finding aftermarket (i.e., affordable) heated, LH photochromic mirror glass with a socket for the OEM blind spot LED for it is impossible. So I bought generic “dotted line” curved, heated Euro mirrors that did support blind spot. What I will do for lighting the arrows is up in the air.

My experience is documented here with Chinese folding mirrors. Overall, I found them to be a good price performance value, although their included wiring harness did NOT support OEM blind spot, but DID support heat and dimming (the glass with the Chinese mirrors were generic heated Euro curved).

https://mbworld.org/forums/e-class-w...tallation.html

Arrie

In my 2012 S550 there is selection in the cluster menu for using the auto-fold at locking the car or not. For that for sure a coding change is needed and thus probably is the same with the E-class.

Dan_2040

An update to the situation:

The operation is a success, I now have both mirrors folding and kept all functionality as before - memory and blindspot light.

This whole operation is to retrofit folding on mirrors that don't have it, but have all the other stuff like memory and blindspot.
Why didn't i purchase the same mirrors but with folding? - They cost an arm and a leg ($500-$1000 each).

If you don't have memory and blindspot on your car, just replace your mirrors and that's it. Mind that UK mirrors will have the dimming on the right side only, if you want to have both sides you need to change your driver side cable harness to the new mirror, and also get the folding motor pins, described below.

The DCMs I had were already the right ones. For older cars 2009-2010 they are A212 820 37 85 right and A212 820 34 85 left, for newer they replace them with A212 900 45 02 and A212 900 44 02, respectively. Basically, if you have memory and blindspot you are all set for DCMs.

You will need the door button module that has the folding, get a new chinese one or source a used original one. Problem with the chinese is that the ambient light is not dimmable and is always bright, but that is of no concern to me, i have them at the brightest setting anyway.

Of course you will need the folding and auto folding functionality to be coded at the end as well, to have it all working. This I'll leave for you to source, I had a distant friend of mine to do it for me outside of US for a small fee.

The mirrors. I have sourced basic folding mirrors from a UK car coincidentally the same color, ended up using their covers because they were slightly less scratched. Usually, the driver mirror has dimming, which set had the right mirror dimmable, but that is of no concern, we need only folding motor housing and the wires but not the mirror glass or their motors. The folding motor is not removable by itself (unless you break a lot of stuff, not worth it) that is why I am using the whole mirror housing the attaches to the car itself, that holds the folding motor. So make sure your donor mirrors have a a nice looking plastic black cover on that is visible on the side of the car pillar.

Stripping down the donor mirrors:
I did one side mirror at a time so there aren't much parts roaming around.

Removing the glass, glass motor, the under cap that holds the welcome light, then the wire harness.

To remove the black under cap, you must unscrew two short screws and unclip there latches, mind them so they don't break, I did break some after all, but they seemed stuck anyway.




To remove the glass motor unscrew three longer screws and pull it out while unplugging it as well.


To remove the wire harness, it is advisable to remove the white and black plug covers to make them smaller, you will be pulling the cable out the mirror towards the outer part of the mirror with all the connectors.



Put something pointy to lift the latch then push it on the other side where there is a hole, and it will pop out. You can mark them which one is which or just remember that the one with less wires is the white one.

Detach all the plugs that are in the mirror housing and also unplug the motor plug.


There is a cylinder looking thing where the mirror folds underneath there is a plastic cap, you can use a pencil or a screwdriver from the inside to push it out, do that now. On the car side of the mirror the cable is held with a push washer, use some pliers to remove it, wither use the same one later or get a new one same size. The rubber grommet needs to go as well, it is pretty tough and hard to break so you can push out the two plugs (black and white ones with removed caps) from the hole safely with a little stretching. After that is gone, just lead the plugs through the canal visible inside the mirror housing and pulling the other end until the whole harness is free.

Now comes the fun part. Start unwrapping the cables harness so you have all the wires free, I used to mark with some tape where the plugs are released from the wrap so I could assemble the cable later, but it is not necessary if you don't plan to resell the unneeded mirror set later.
When you have the cables free, you need to locate which are the pins for the folding motor. I used a multimeter and trace all the pins a to the connectors, and will share that list later, because I left it in my workshop. But the right pins are these:
THIS IS THE WHITE PLUG WITH THE WHITE CAP REMOVED, it is NOT the black plug.


VERY IMPORTANT, Mark which is which before removing them from the connector, don't mess them up. I will provide later the schematic which pin goes where to the end connectors, but make sure to not mess these up. As you can see the 1 (bottom right) and 5 (bottom left) this is the pin numbering order in the connector. The pins we need are 4 and 5. Free the the wires and you should have the motor plug on the other end. Just push down the bulge on the pin while slightly pulling on the wire and it will pop out. It goes same way in on your connector. It is best to wrap the motor cables in a protective cable tape, I used black cloth insulating tape.

Now do the the disassembly the same way on your corresponding mirror that has memory and blindspot. The only difference is that we don't need to unwrap the cables.
After you have your mirror parts removed from the housing, start putting them back in the housing with the folding motors in reverse order. Your original cable needs the get two new pins added. They should be added in the same pin holes on the same white connector with the removed white cap. Mind which one was which. You can even tell if you write down that the motor plug has one horizontal pin and one vertical one, remember which one is which. You should have two cables harnesses now - one is your original one and the other is the folding motor one, tape them together on several places so the move as one and also they will be connected at the end in white connector. Then you will plug the motor cable in the housing Itself. It is a good idea to route the cables

You will notice that the glass motor has a different plug that is why we need ours and the old plug. Mine had several more wires for the memory and the blindspot, which are spread on both black and white connectors. But we need not to care for those, only plug in the folding motor pins in the white connector.

On the mirror side of your blindspot mirrors there is white connector that is holding the blindspot light and the dimming for the driver side mirror, don't mess this up cus it is an expensive mistake, look at the pic:

Use a tool to pull that white tab up towards you slightly and that will free up the other part to pull off.

On the side of the triangle rubber grommet make sure you add the metal push washer back and where the cables meets the grommet do wrap them with rubber tape. You should notice that originally at those places there as rubber wraps, but to make them seal better with the new cable just add some more tape there.

Do all that for both mirrors and you will have the folding + memory and blindspot light. Do some regular checks on the car before closing up the mirror so you know everything is working. Use a multimeter to check if you think some cables may be damaged. And while you are in there you can use a small steel brush to take off some of the aluminum corrosion that has built up - there will inevitable be one if the mirror housings are from the UK.

You can change your bulb for the welcome light as well, I didn't, mine were still good and did not have a spare ready. maybe I should have but whatever. What I did change was to add some new running LEDs for the blinkers, pretty straight forwards swap.

I'm open for any questions. I will add the pin out schematic later when I get it back from my shop.

Dan_2040

The mirror plug schematic.
The orientation of the plugs while observing it was pins towards me, and I have specified where the notch of the plug is oriented per pin.
You need to locate the 1 - 5 and 6 - 10 numbering on the plug itself, this is how the pins are oriented and numbered on the connectors.

Notice the two sets of mirrors have very different pin layout for the glass motor. You generally don't have to concern with this, but the reason is the memory function of the mirror glass orientation.
The blind spot mirrors have one plug for the BS and the dimming on the drivers side. BS has 3 pins on one row, dimming has 2 pins on the other row of the plug. On the passenger side the dimming pins are missing, while the plug is the same.

For UK basic mirrors that only have folding and no blind spot, no memory:
Right - Driver Mirror UK:
Black Plug pins:
1 - White plug for dimming
2 - White plug for dimming
3 - Heating
4 - Heating
5 - empty
6 - Glass motor - (^)^^ (pin holes triangle point to top)
7 - Glass motor - ^(^)^ (pin holes triangle point to top)
8 - Glass motor - ^^(^) (pin holes triangle point to top)
9 - Blinker - q(p) (notch on bottom)
10 - Blinker - (q)p (notch on bottom)

White Plug pins:
1 - Light bulb
2 - Light bulb
3 - empty
4 - Folding motor - | (vertical pin while connector is oriented horizontally)
5 - Folding motor - _ (horizontal pin while connector is oriented horizontally)
6-10 - empty

Left - Passenger Mirror UK:
Black Plug pins:
1 - empty (was dimming on the other one)
2 - empty (was dimming on the other one)
3 - Heating
4 - Heating
5 - empty
6 - Glass motor - (^)^^ (pin holes triangle point to top)
7 - Glass motor - ^(^)^ (pin holes triangle point to top)
8 - Glass motor - ^^(^) (pin holes triangle point to top)
9 - Blinker - q(p) (notch on bottom)
10 - Blinker - (q)p (notch on bottom)

White Plug pins:
1 - Light bulb
2 - Light bulb
3 - empty
4 - Folding motor - | (vertical pin while connector is oriented horizontally)
5 - Folding motor - _ (horizontal pin while connector is oriented horizontally)
6-10 - empty


For NON - UK basic mirrors that have blind spot and memory, but no Folding:
Right - Passenger Mirror:
Black Plug pins:
1 - empty (dimming on the other one)
2 - empty (dimming on the other one)
3 - Heating
4 - Heating
5 - Blind Spot - o(o)o
6 - Glass motor - ooo(o) - bottom row wile the notch is on the right
7 - Glass motor - oo(o)o - bottom row wile the notch is on the right
8 - Glass motor - (o)ooo - bottom row wile the notch is on the right
9 - Blinker - q(p) (notch on bottom)
10 - Blinker - (q)p (notch on bottom)

White Plug pins:
1 - Light bulb
2 - Light bulb
3 - Blind Spot - oo(o)
4 - Empty but can be filled with Folding motor - | (vertical pin while connector is oriented horizontally)
5 - Empty but can be filled with Folding motor - _ (horizontal pin while connector is oriented horizontally)
6 - Blind Spot - (o)oo
7 - Glass motor - ooo(o) - Top row wile the notch is on the right
8 - Glass motor - oo(o)o - Top row wile the notch is on the right
9 - Glass motor - o(o)oo - Top row wile the notch is on the right
10 - Glass motor - (o)ooo - Top row wile the notch is on the right

Left - Drivers Mirror:
Black Plug pins:
1 - White plug for dimming - pins go to the same plug as the Blind Spot but on the second row
2 - White plug for dimming - pins go to the same plug as the Blind Spot but on the second row
3 - Heating
4 - Heating
5 - Blind Spot - o(o)o
6 - Glass motor - ooo(o) - bottom row wile the notch is on the right
7 - Glass motor - oo(o)o - bottom row wile the notch is on the right
8 - Glass motor - (o)ooo - bottom row wile the notch is on the right
9 - Blinker - q(p) (notch on bottom)
10 - Blinker - (q)p (notch on bottom)

White Plug pins:
1 - Light bulb
2 - Light bulb
3 - Blind Spot - oo(o)
4 - Empty but can be filled with Folding motor - | (vertical pin while connector is oriented horizontally)
5 - Empty but can be filled with Folding motor - _ (horizontal pin while connector is oriented horizontally)
6 - Blind Spot - (o)oo
7 - Glass motor - ooo(o) - Top row wile the notch is on the right
8 - Glass motor - oo(o)o - Top row wile the notch is on the right
9 - Glass motor - o(o)oo - Top row wile the notch is on the right
10 - Glass motor - (o)ooo - Top row wile the notch is on the right

BenzV12

That's an outstanding job , thanks for sharing all the details