W114 direction indicator blinking rate - PeachParts Mercedes-Benz Forum

alulai · #1 04-19-2011, 10:07 AM

Can anyone tell me what is the normal blinking rate of the turn signal light? 2~3 blinks per second?

JimFreeh · #2 04-19-2011, 11:01 AM

Sounds too fast, check to see if all the lights are illuminated.

Jim

alabbasi · #3 04-19-2011, 01:39 PM

I have a similar problem with my 76 300D. All lights work but I think that I need to either clean the contacts or replace the bulbs.

Kpmurphy · #4 04-20-2011, 09:08 AM

My 70 220D blinks very fast, I asked my dad about it, he gave me the car he said it has allways been like that. all the lights work. Now that i think about it the side marker lights are not hooked up, mabey thats the problem. On my 76 240D the side marker lights do work and I get the normal blink.

JimFreeh · #5 04-20-2011, 07:35 PM

Quote:

Originally Posted by Kpmurphy

My 70 220D blinks very fast, I asked my dad about it, he gave me the car he said it has allways been like that. all the lights work. Now that i think about it the side marker lights are not hooked up, mabey thats the problem. On my 76 240D the side marker lights do work and I get the normal blink.

The marker lights are independent of the turn signals.

Jim

Yak · #6 04-20-2011, 07:40 PM

A burned out bulb or a "heavy duty" bulb can cause too fast blinking. Maybe corrosion in the socket or on the connector, a bad solder joint. Basically things that affect the resistance in the circuit from normal can affect the speed.

79Mercy · #7 04-20-2011, 07:55 PM

Quote:

Originally Posted by Kpmurphy

My 70 220D blinks very fast, I asked my dad about it, he gave me the car he said it has allways been like that. all the lights work. Now that i think about it the side marker lights are not hooked up, mabey thats the problem. On my 76 240D the side marker lights do work and I get the normal blink.

I think on the 1970 220D that they are not supposed to light up, they are strictly reflectors.

A fast blink is most likely a issue with the relay under the dash if the bulbs are good and all contacts are clean.

JimFreeh · #8 04-21-2011, 06:13 AM

Quote:

Originally Posted by 79Mercy

I think on the 1970 220D that they are not supposed to light up, they are strictly reflectors.

A fast blink is most likely a issue with the relay under the dash if the bulbs are good and all contacts are clean.

The 68-69 were reflectors only, 70 - 76 had lights.
Both appear the same from the outside, the lighted ones required an additional hole in the fender for the wiring.

Jim

79Mercy · #9 04-21-2011, 07:57 PM

Quote:

Originally Posted by JimFreeh

The 68-69 were reflectors only, 70 - 76 had lights.
Both appear the same from the outside, the lighted ones required an additional hole in the fender for the wiring.

Jim

Kevin might have a very early car with reflectors i dont know.

Kpmurphy · #10 04-28-2011, 03:47 PM

Quote:

Originally Posted by 79Mercy

Kevin might have a very early car with reflectors i dont know.

I have bulbs in the 70, over the weekend i took the side marker lites off the 76 240D and put them on the 70 220D the lights did not light up, they worked on the 76 i am not geting power, i checked with a test light, o well there are in better shape.

I also checked the blinker bulbs in the tale light there is a big dab of solder on the end of the bulb, that may be causing the fast blink.

ScooterABC · #11 04-28-2011, 06:38 PM

Ah, but you are all missing the possibly correct answer! Defective hazard switch. The hazard switch on my 1971 250 C went bad. I acquired several additional used ones. Some caused really slow blink, some really fast blinking, some no blinking, and some just the blinker would stay on. I finally bought one new via "that place" in Arizona.