Mr50mml

07E350Benz

My 07 E350 Just started doing the same thing. It was working fine until my battery was dead when i came back from working 28 days offshore. Car started fine no sign of any other problems just that damn blinking. i checked it with my star inspection and no faults in the instrument panel or cruse control modules.. only thing that caught my eye while i was checking every system was my steering wheel module says my wheel is position is always turned right. but the degrees is 0 and works all the way through the steering lock. only change i made to the car before was putting 20'' rims on it have no had my wheel alignment done yet. getting it done in the morning will update if it fixes the problem.

withbag

irondad

It's the gauge cluster. I had the same issue and swapped my gauge cluster out with one off of eBay (retaining the original PCB) and it's cured.

ot1

2006 E320 CDI

LAST year my cruise ring never came on, prior years always worked, few times this year it would flash, and randomly only work for a day. But for the past 5 days, its been working as it should, lit when cruise is on. I think, maybe, its a CANBUS error. What is needed is a CANBUS analyzer to read the messages and see if the message is being sent or acknowledged.

jepaul

New to the forum. Thanks guys for discussing this. I am having the same issue. Random flashes when not using the cruise and then blinking when cruise is engaged. It feels as though everything is working as it should, just the lights are angry at me. I tried to reset the transmission using the 30 second method and it corrected the issue until I changed lanes using left turn signal and it began to blink again. I then pulled off the road and reset using the 30 second/5 minute method and it corrected the issue. I tried the turn signal and it did not fail but it has only been a short period of time since then. I will report back if I notice a change during any particular event or if it remains in working mode.

I am surprised that there is no solution based on the duration of this thread. Hopefully we can collectively resolve this gremlin.

Update (8/22): After work I engaged the cruise on the way home, the blinking bricks came back to visit! My next step is to swap out the brake switch. From past experience I remember doing a brake switch on an Infiniti Q50 with a blinking cruise indicator that resolved the problem. Not exactly the same but I think the system concept and engineering might be close enough to have similar symptoms/results. Will post another update after parts arrive.

(8/26) My Master Mechanic friend has informed me that the brake switch is most likely on the booster. I decided to park the car for few days and think about this a little bit. I did disconnect the battery when I fixed the tumble flap/intake code. I wonder if I should reset the steering angle? I am now thinking (on advice of another member) that I should replace the instrument cluster.

Update (8/23): Everything worked fine this morning . . . cruise set at 45mph until I approached a school zone, applied brakes and the system disengaged as it should, when I reset the cruise all of the speed set lights were out, not even blinking bricks anymore, completely out. On the drive home I engaged the cruise and everything worked fine again, cruised for about 3 miles and all lights on the cruise speed indicator went out. The cruise functions as it should except for the display. Have scheduled an appointment with the dealer to troubleshoot this further but I will still attempt the brake switch replacement when it arrives tomorrow.

Update (8/25): HELP! I don't have a brake switch under the dash. Am I finally ready to check into a a nice retirement community or is this possible? I found a bracket and hole where I would have thought the switch should go. Any advice, is this braking system controlled someplace under the hood?

Update (9/10): I had an appointment with the dealer but Dorian interfered with that plan. I also purchased a used gauge cluster on ebay but it never arrived. I'm guessing Dorian got in the way there too. Got a refund so no harm. I am going to make some time to have the dealer run code scan but I am beginning to think it is either an electrical issue in the cluster of a sensor to the speed/transmission. Will try to stay on this.

Update (9/29): Had to take break. Life gets in the the way sometimes. Problem continues but is intermittent. I went on a road trip and the CC worked fine. A few days later, back to flash, then no lights but functions normal. Thanks for the suggestions on the cluster, that is probably my next step. I will try to find one online.

Update (10/17): The mystery continues. For the past 2-3 weeks everything is working as normal. Lights come on when CC engaged, no flashing, all is good. The only change is the weather. It is no longer in the 90s it is generally in the low 80s and high 60s at night. I will watch this closely..

11/16; Hell's bells and all's well - still. Strange, very strange.

1/13: Okay, I'm back and I was able to discuss this problem with a couple of different mechanics. Both were from Euro indi shops in my local area. The conclusion is that it is in fact a defect in the gauge cluster. I can be replaced (if it bothers you that much) this will require one of two actions; you will need to flash the dash with a programming tool that will cost extra for the procedure or you can attempt to transfer the eprom yourself or through a shop that does this kind of thing. That seems to be it as no codes related to the transmission or electrical problems are showing on my car. -- I hope this helps. FYI -- I must give credit to irondad for telling me this was their solution. He did the eprom switch and it worked for him.

drcevin

Same exact problem. Little flashing blue bricks without rhyme or reason......cruise works fine.

SteveJay

Hi gang, new guy here with a 2003 E240 (South African spec). I just bought the car and still finding my way around it, but have owned a E230 (1998) and an E240 (2000) before.
I read through this thread hoping to find a fix or maybe some fresh ideas!

My CC engages, along with the segmented ring and behaves normally for maybe 10 seconds, then the ring starts flashing and the CC disengages!!
I tried everything I could think of, including resetting all the km /kph /l/100 settings (Mi /MPH /MPG) - no joy.

What may be a clue, is the red "+ Battery -" warning comes on after start-up. The previous owner said that aux battery needs replacing? I checked on the main battery in the trunk and I don't believe that it is the correct battery for this car - way too small?

ot1

the main battery is a group 49, AGM, I INSTALLED a Bosch Series 6, 7 yr warranty, $185 including tax from pep boys
aux battery from FCP euro $124
Aux battery 12v 12ah 2115410001

Main Battery 0055411001

SteveJay

Thank you OT1.

Took it onto the motorway today to experiment with the cruise control, At speeds below 110 kmh (69 mph) it works normally with the segmented circle filling the balance of the range. If i bump up the cruise speed, the segmented bit flashes and the CC disengages??

irondad

It's the gauge cluster. Get a used cluster, swap the PCB (search on here for that), and problem solved.
I've had the problem and did that on both cars and problem solved.

jepaul

Okay, I was able to discuss this problem with a couple of different mechanics. Both were from Euro indi shops in my local area. The conclusion is that it is in fact a defect in the gauge cluster. It can be replaced (if it bothers you that much), it will require one of two actions; 1) you will need to flash the dash with a programming tool that will cost extra for the procedure; 2) you can attempt to transfer the eprom yourself or through a shop that does that kind of thing. That seems to be it as no codes related to the transmission or electrical problems are showing on my car. -- I hope this helps. FYI -- I must give credit to "Irondad" for telling me, this was their solution. He did the eprom switch and it worked.

ot1

I have been using my cruise control every day during every errand to keep from getting a ticket in the areas I drive daily. Recently the segmented cruise display would sometimes work, sometimes not. When it worked appeared to be associated to the cabin temperature. I now believe a driver chip for the display has a bad solder joint or maybe a bad trace via. Does anyone know where I can find the schematics for the 06 w211 instrument panel—?

konigstiger

Pull the IC and visually inspect boards. 209 basically same as 211: https://mbworld.org/forums/clk-class...ml#post5465249

pgsurface

Mine has been doing this for years. No TIPS documents on the issue that I have seen.

PTSS recommendation back in the day was to replace IC.

Far cheaper to check boards/reflow solder etc etc

It doesn’t bother me anymore, ha. My coworker’s W211 does the same thing, just worse.

Gamateur

The same issue and still did not have any sollution,

jepaul

Some other members noted that the cluster is faulty and should be replaced. Finding a compatible unit is not very expensive on various online shopping sites. The replacement install is extremely easy too. But wait, there's more! If you replace the cluster and the mileage is not with a certain range (something like 1K miles) it will require reprogramming . . . that is where the cost shoots to the moon. It has been mentioned that the old computer chip can be removed and installed on the new cluster as it containes the data needed. My mechanic agrees that it is the cluster. So I will evaluate just how much it bothers me . . . See my comments on this thread as well as irondad, he did the reapir.

Zabi Butt

Hi,
would you be able to provide any update on this issue you had...??
I'm having same issue with my 2009 E280 w211,
Rear tyres are almost gone ..and just started having this issue of flashing ring and disappearing...
Wondering if changing the tyres got the issue fixed .???

Zabi Butt

Did the tyre change fix the issue,
I'm having same problem with my E class W211

Minh

I have the same issue with W211 2007: cruise control dial is flashing occasionally even it not engaged. Do you know what I need to do with Instruments Cluster?

Minh

Can you detail what need to resolder?

ot1

have you seen this post by member GADGET on 12/09/2020? No one replied
__________
“Interesting thread.

OK. Just had the same problem. Search lead me here.

Reading through this I saw another guy that had a similar condition to me. I had to jump start my 06 E55 to get it going. Just don't drive it as much as I should. After I got it going I put it on the battery charger overnight.

Yesterday I got the flashing cruise control arch.

After reading this thread I had an idea. I was thinking that some module did not properly reset after the undervolt condition, so I removed the negative battery terminal for an hour and reconnected it.

Just did a couple of drive cycles and all is as it should be. No flashing cruise control arch. So, someone else give the battery reset a try and see if it clears up the problem. Lets hope it is really that simple. “
___________

So try it and reply back here please!