SL/R230: Vario roof "Locked in driving mode" R230
MBworld Guru
Joined: Dec 2009
Posts: 10,782
Likes: 1,011
NO LONGER ACTIVE
Since this could be an EIS problem, and you are having to switch the ignition on to operate the roof, here's a thought: Have you tried operating the roof via aiming the SmartKey at the IR sensor on the door handle?
Thread Starter
Junior Member
Joined: Nov 2019
Posts: 25
Likes: 0
sl 500 r230
Gentlemen, as I wrote earlier, I can open the roof with the pilot road test done ok, apprenticeship of wheel sensors, changed EIS , zero errors in the entire car and system diagnostics, yet it does not allow to open the roof from the console because it pops blocked in driving mode.
Last edited by marianno3000; Jan 6, 2020 at 05:01 AM.
Thread Starter
Junior Member
Joined: Nov 2019
Posts: 25
Likes: 0
sl 500 r230
Hello, I'm still tired of this roof problem, but I think I have a small lead car is from the USA, so the speed in mph, I wonder if the roof module reads speed in mph or in km, it could be that they mixed up the speed coding in the car. Is anyone coding from mph for km and the roof worked for you.
MBworld Guru
Joined: Dec 2009
Posts: 10,782
Likes: 1,011
NO LONGER ACTIVE
My understanding is that anything dealing with distance measurement in the car is always interpreted in metric (kilometers) and sent over the bus that way. The display of speed and distance in "miles" is just a setting in the instrument cluster to show it that way. So, the vehicle speed would be sent to the vario roof control module in KPH regardless.
Here's my advice: Stop wasting time trying to track this down and spending money on parts. Go spend the US$350 and get a Mod4Cars SmartTop module. This will override the speed eequirement and give you many other very desirable features.
Here's my advice: Stop wasting time trying to track this down and spending money on parts. Go spend the US$350 and get a Mod4Cars SmartTop module. This will override the speed eequirement and give you many other very desirable features.
MBworld Guru
Joined: Dec 2009
Posts: 10,782
Likes: 1,011
NO LONGER ACTIVE
If it truly is something causing the vehicle speed to be improperly reported over the CAN bus, then I think the SmartTop module would fix that, unless it's being reported as over 60 km/h (that's the maximum speed the SmartTop will allow for operating the roof while moving). Given what you've already tried, I think it would still be worth the money to try the SmartTop. If it works, good. if not, then you have a choice - get it repaired and keep the SmartTop (you'll love it!) or just sell it to someone else who would use it.
Banned
Joined: Jan 2006
Posts: 1,982
Likes: 393
From: Atlanta, unfortunately
'09 S600, (2) R129 300SLs, '03 SL500, '03 SL55
The smartTOP module can operate the roof via the remote's RF signal with the ignition switched OFF. And if I remember from earlier in this thread, when the ignition is off the speed is correctly reported to be zero.
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBworld Guru
Joined: Dec 2009
Posts: 10,782
Likes: 1,011
NO LONGER ACTIVE
The SmartTop module works by sitting between the CAN bus and the roof control module and "manipulating" the signals that the roof controller receives. For example, the factory function for opening and closing the roof is that you must hold the console switch in position until the operation completes. If you release the switch, the operation stops. This is because the switch sends its status signal over the CAN bus and the roof module will only operate when it's being activated. The SmartTop module read the "tap" of the switch being signaled across the CAN bus and then re-transmits that constantly to the roof module. The same goes for the speed. The SmartTop reads the vehicle speed from the CAN bus and then changes it. If it's below 60Km/h (or a lower maximum speed you select in the SmartTop settings) then it sends "0Km/h" to the roof controller.
Because of this CNA bus signal manipulation, this is why I suggest getting a SmartTop controller to test this. I know $350 is a bit of a price to pay for testing, but I think it's a good investment because (IMHO) it's a modification you;d want anyhow.
Because of this CNA bus signal manipulation, this is why I suggest getting a SmartTop controller to test this. I know $350 is a bit of a price to pay for testing, but I think it's a good investment because (IMHO) it's a modification you;d want anyhow.
Banned
Joined: Jan 2006
Posts: 1,982
Likes: 393
From: Atlanta, unfortunately
'09 S600, (2) R129 300SLs, '03 SL500, '03 SL55
I remember the speed showing 255 km/hour when the key is switched on. But what is it when the vehicle begins to move? If it is less than the 60 km/hour threshold that Rodney mentioned, with smartTOP you can operate the roof from the console switch.
Thread Starter
Junior Member
Joined: Nov 2019
Posts: 25
Likes: 0
sl 500 r230
Hello smartop will not work so wrote the manufacturer can not see the speed of the vehicle. Speed 255 we have when the ignition is off, 0 when the speed is turned on shows by following the meter e.g.
speed counter 50
roof module 50
The roof does not recognize the speed of can B just why.
speed counter 50
roof module 50
The roof does not recognize the speed of can B just why.
Thread Starter
Junior Member
Joined: Nov 2019
Posts: 25
Likes: 0
sl 500 r230
Please road test and how can I behave after unplugging the sbc and meter parameters are correct. https://mega.nz/#!PCBTRCaL!_wU1yi6Aw...PkEFBgwSw_na_I
Banned
Joined: Jan 2006
Posts: 1,982
Likes: 393
From: Atlanta, unfortunately
'09 S600, (2) R129 300SLs, '03 SL500, '03 SL55
So this is wrong:
If I am following this correctly, the issue is that according to Star Diagnosis both the instrument cluster and ignition switch give a speed of zero, and yet the status for the speed being below "threshold" (c. 5 KPH) is false. I'll never make sense of that.
All of the statuses are normal with the key off. For this reason I believe the smartTOP module will work. If you choose to try one, you simply need to power it and plug it into the CAN. You can make the power connections quickly and easily, and if it does not work, you could put it on eBay and accurately represent that its condition is "as new".
All of the statuses are normal with the key off. For this reason I believe the smartTOP module will work. If you choose to try one, you simply need to power it and plug it into the CAN. You can make the power connections quickly and easily, and if it does not work, you could put it on eBay and accurately represent that its condition is "as new".
MBWorld Fanatic!
Joined: Mar 2018
Posts: 1,442
Likes: 260
From: Netherlands
2005 R 230 SL350 (M112 3.7). Sold the 1966 W113 230SL recently
This problem is intriguing and very unsatisfying. There’s a German guy (on a German forum) with the same unsolved issue.
I will keep that and this forum posted about any progress on either side.
https://www.motor-talk.de/forum/vari...e#post58304910
I will keep that and this forum posted about any progress on either side.
https://www.motor-talk.de/forum/vari...e#post58304910
MBworld Guru
Joined: Dec 2009
Posts: 10,782
Likes: 1,011
NO LONGER ACTIVE
I was poking around in WIS and noticed that the vario roof module has multiple connections to multiple CAN bus junction blocks in the car. I am not sure why because it really should only need one CAN us connection because anything send over CAN B should be on any CAN B connection. I will mention that the instructions for the SmartTop specifically state that it is "now" to be installed on the rear CAN bus block (by the rear SAM) and "no longer" installed on the front driver's side CAN bus block. So maybe there are differences in the signaling from the various CAN junction blocks in the car? And maybe that is a key here? You might check those clocks to make sure all the wires are secure and there is no corrosion. They are located under the door sill trim on the left and right, under the A pillar, and next to the rear SAM (fuse panel) behind the passenger seat. They are easy to recognize becuuase they look like a bard with a dozen or so brown wires connected in a row.
MBWorld Fanatic!
Joined: Mar 2018
Posts: 1,442
Likes: 260
From: Netherlands
2005 R 230 SL350 (M112 3.7). Sold the 1966 W113 230SL recently
above, ‘clocks’=blocks, I guess
Just a wild guess, not being afraid to expose foolishness here: 2^8=256. Starting at 0 in stead of at 2, might 255 be equivalent to zero in binary (SAM) language, and be misinterpreted somewhere along the line..?
Just a wild guess, not being afraid to expose foolishness here: 2^8=256. Starting at 0 in stead of at 2, might 255 be equivalent to zero in binary (SAM) language, and be misinterpreted somewhere along the line..?
Banned
Joined: Jan 2006
Posts: 1,982
Likes: 393
From: Atlanta, unfortunately
'09 S600, (2) R129 300SLs, '03 SL500, '03 SL55
I don't follow your point, Fred, but there is something to 256.
255 is the largest value that an unsigned 8-bit binary number can represent. When the ABC controller recognizes no signal from the pressure sensor, it displays a pressure of 255 to indicate invalid data. That seems to be the case with the roof controller as well. When my car's ignition is off, the vehicle speed indicated by the roof controller indicates a speed of 255.-- just like Marianno's car.
255 is the largest value that an unsigned 8-bit binary number can represent. When the ABC controller recognizes no signal from the pressure sensor, it displays a pressure of 255 to indicate invalid data. That seems to be the case with the roof controller as well. When my car's ignition is off, the vehicle speed indicated by the roof controller indicates a speed of 255.-- just like Marianno's car.
MBWorld Fanatic!
Joined: Mar 2018
Posts: 1,442
Likes: 260
From: Netherlands
2005 R 230 SL350 (M112 3.7). Sold the 1966 W113 230SL recently
Okay, so in M’s car 255 is not indicating max factory speed, but invalid data. Can ‘invalid data’ include or even imply ‘no data’?
Thread Starter
Junior Member
Joined: Nov 2019
Posts: 25
Likes: 0
sl 500 r230
Hello, again, I see the problem is interesting, I am an electronics technician, for example, consumer and car electronics, can network of cars can be excluded with an oscilloscope. I made my own network
sbc-esp
esp-counter, eis can C
meter, eis-roof module can B
and that didn't solve the problem. bobterry 99 is right about speed 255 this is the correct value. To solve the problem you need help who has such a car and sd.
sbc-esp
esp-counter, eis can C
meter, eis-roof module can B
and that didn't solve the problem. bobterry 99 is right about speed 255 this is the correct value. To solve the problem you need help who has such a car and sd.
MBworld Guru
Joined: Dec 2009
Posts: 10,782
Likes: 1,011
NO LONGER ACTIVE
One thing I will mention about binary data...
When installing previously used instrument clusters or EIS units, the stored odometer value must be zeroed in order to allow for coding the part to the car. To do this, the value that you write to the EEPROM section that stores the odometer is all FFs. I can't remember the exact number of digits and I'm too lazy to go out in the garage and dig through my notes, but it basically is the maximum value. I think this "maxing out" a value to indicate "no value" is fairly common.
When installing previously used instrument clusters or EIS units, the stored odometer value must be zeroed in order to allow for coding the part to the car. To do this, the value that you write to the EEPROM section that stores the odometer is all FFs. I can't remember the exact number of digits and I'm too lazy to go out in the garage and dig through my notes, but it basically is the maximum value. I think this "maxing out" a value to indicate "no value" is fairly common.
Thread Starter
Junior Member
Joined: Nov 2019
Posts: 25
Likes: 0
sl 500 r230
FF is a hexadecimal number
255 decimal number
FF = 255 this is saved in the eeprom and this is normal memory cleaning can be done by entering only FF or 00, but that's another topic, we have 255 on can bus because ignition is off and esp does not send anything about speed on can bus and this is correct.
255 decimal number
FF = 255 this is saved in the eeprom and this is normal memory cleaning can be done by entering only FF or 00, but that's another topic, we have 255 on can bus because ignition is off and esp does not send anything about speed on can bus and this is correct.
Thread Starter
Junior Member
Joined: Nov 2019
Posts: 25
Likes: 0
sl 500 r230
I have a request to bobterry99 I see that you have the same car and sd, can you spr in the roof parameters as you raise the left front wheel and you will spin if the speed changes or it will be 0 alone, whether opening the door and lowering the rear windows will help open the roof tips.
Banned
Joined: Jan 2006
Posts: 1,982
Likes: 393
From: Atlanta, unfortunately
'09 S600, (2) R129 300SLs, '03 SL500, '03 SL55
So, I'll spin the left front wheel and watch what the roof controller sees for speed and also what the EIS and ESP have. I don't understand what you are referring to by roof tips though.
