Mercedes Vito Indicators Not Working

[Etta Lesniak]

Themost common way a canbus system will check if a bulb is working or not is to measure the resistance on the circuit. Some vehicles measure the total circuit resistance, others check individual bulbs. But they are checking for the characteristics of a normal filament bulb.

Bulbs like the Twenty20 Cree LEDs and some of the Ring Premium range have additional resistors built into them to adjust the characteristics of the bulb. This brings them closer to the parameters that your car is looking for.

The issue is with the amount of resistance that would be needed for it to match a filament bulb. It would simply be too big and be too hot. The heat from a resistor would cause it to fail almost instantly.

hi, my son has a 2014 vw polo, he has fitted dynamic indicators which work with ignition on but when the engine is running he gets 3 flahes then they cut out. would the resistors shown work to cure this problem?

I tried installing H11 Twenty20 Cree LED 12V Canbus Foglight Bulbs to my For Transit Connect but I have CANBUS issues. Bulb flashes 4 times then stays off. I installed a 55w resistor across each bulb connection and same error. Bulb flashes 4 times then stays off.

Hi There. I have installed 2 new LED bulbs, brake light and indicator lights, on either side of my car. However, they are both connected with one wire. They are both 21w bulbs but connected to the same wire. This is on my 2015 Vauxhall Corsa. Would I still be able to install a 21w resistor to this one wire for both bulbs or would i need to double it so maybe go for one nearest to 42w? let me know!

The ideal,is to be able to swap out the old style flasher unit and replace it with an electronic unit. Unfortunately car manufacturers are fitted with blinders and just refuse to do it, even in the 2020, just to save a few cents,although with modern parts manufacturing I would doubt that there is any cost difference.

Not to be unfair, there are a few sensible Car makers who do fit electronic units plus LED bulbs, cynically though, they make their Led bulbs as an integral unit ,hence no easy bulb swap, large cost for replacement. Definitely not customer friendly, its all about the bottom line.

Hi, Just bought the 380 Twenty20 Impact Cree Canbus Bulb 12V P21/5W (Red) for my BMW R1200RT (2011) which you say are a direct replacement. The first thing to note is the lugs are not the same in relation to fit. The ones I bought from yourself are offset in height. I know have a tail light bulb warning on my dash to say that somethings wrong yet they both seem to be working.

Hi there please help if you can I replaced my daytime running lights for led error free bulbs going great until last wk offside started flickering put it into drivers side still flickered so ordered replacement thinking it was faulty.a week has gone by and the offside bulb has dimmed any ideas why would be appreciated drivers side no problem at all tia

Hi I have a vw caddy mk4

Have changed the day time running lights to Osram LEDS

Which has put a light bulb on in the dash

The bulb holder has 3 black wires to it how do determine which 2 to connect resistor to.

Thank you

I bought some Roylux LED headlight bulbs for my 2005 Toyota Tundra 4-door. the bulds work well, but my foglights will not come on at all. When i switch them on, the headlight brights come on. When i try to dim the headlights, they stay on high beam until i switch off the foglights. Do you know a fix?

Hi, I have a Jeep Compass 2014 and have replaced my low beam headlights with H11 as described. First I installed regular leds supposedly compatible with car H7-H11-9005-9006 Auto Headlights kit Led Light 18000lm 80w. Changed to other model Headlights kit Led 16000lm Auto Csp H1 H7 H11 9005 9006 9012 w/Canbus 50w/ea. The problem is that it does not matter which led lights are installed with Canbus or not the headlights start to blink on and off. One on passenger side starts first then jumps to driver side then in unison. Like Xmas lights. Any suggestions? Would greatly appreciate some guidance. Thanks and merry Xmas!

Hello i have a volvo s40 mr2 2004. I install samsung mover f3s h7 and the low beam failure still appear. I read at some forums that many have this problem. what i should do? The lights works fine but i have that error on my panel. I think the square box that they have is already canseler or not? Any help please? Maybe to do everything led it will solve the problem or not?

I have just fitted Ring Premium LED bulbs (RW501CBLED 12v W5W 501 LED) to sidelights of Ford Ka 1.2 2001 as wanted to increase visibility of daylight running lights (sidelights). They were fitted to replace other LED side lamps that worked but brought up dashboard warning (lamps out). The Ring are bulbs advertised as suitable for my car and CANBUS. The bulbs do not work at all and warning light remains. I have replaced the old filament bulbs. Any ideas before I send them back?

Hi I have a Mercedes Vito. My small car trailer lights are not a problem, but with a caravan which has a total of eight extra bulbs. 2 front marker lights 2 side marker lights 2 number plate lights and two rear side lights. When the lights are turned on they go off and on several times then go offpermanently . Can you advise. Regards Michael.

You supplied me with campus bulbs for my 12 Skoda yeti 1.6 diesel my warning light is still showing check left brake light plus registration plate light even though they are still working is there a special way of putting them in and is common to happen on this particular model car

I have fitted these to the rear indicators to my Ford Kuga 2015 and if I switch on either right or left indicator the indicators flash much quicker as if a bulb was not working, I do not have any error warnings, if I put the hazards ie all 4 indicators they flash normally what is wrong please.

Good afternoon, I have 2 Osram H7 LED bulb and I have an error on dashboard. Can you tell me please what Canbus is beter to use between Osram LEDCBCTRL 103 and Philips H7 Canbus. I know at Osram canbus I will have to change the conector. Thank you!

Hello, I have yellow (ish) halogen DRL bulbs on my vauxhall insignia and want to change them for led bulbs and have no error messages / bulb out on the dash. Which rating of osram resistor kit would be suitable? Thanks.

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