R170 Passenger Stop Light - Mercedes Benz SLK Forum

SLK R170 General Discussion SLK 200, SLK 230K, SLK 320, SLK32 AMG

 7Likes
Reply
 
LinkBack Thread Tools
#1 Old 11-01-2017
6007.us
 
Padgett's Avatar
 
Join Date: Mar 2017
Location: Orlando
Vehicle: '01 SLK320 Lazulithe Blue, '00 SLK230 Bahama Blue (needs interior parts)
Other Toys: Too many others. See web page.
Posts: 2,594
Country:
Chats: 0
Mentioned: 287 Post(s)
Tagged: 0 Thread(s)
Quoted: 573 Post(s)
Thanks: 0
Thanked 157 Times in 144 Posts
(Thread Starter)
R170 Passenger Stop Light

keeps failing. Sharp rap and it works. Once. Bulb is fine. Anything I should know about passenger side stop light wiring ? Just a single filament bulb.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Padgett is offline  
Sponsored Links
Advertisement
 
#2 Old 11-01-2017
Premium Member

 
Idiot101's Avatar
 
Join Date: Sep 2014
Location: Pfafftown, NC
Vehicle: 2004 slk32 amg
Other Toys: 69 GTX - Red!
Posts: 4,915
Country:
Chats: 0
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 265 Post(s)
Thanks: 188
Thanked 279 Times in 268 Posts
Seems like there was a recall on one of the R170 tail light assemblies. Might try a search.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


The Toy
Idiot101 is offline  
#3 Old 11-01-2017
6007.us
 
Padgett's Avatar
 
Join Date: Mar 2017
Location: Orlando
Vehicle: '01 SLK320 Lazulithe Blue, '00 SLK230 Bahama Blue (needs interior parts)
Other Toys: Too many others. See web page.
Posts: 2,594
Country:
Chats: 0
Mentioned: 287 Post(s)
Tagged: 0 Thread(s)
Quoted: 573 Post(s)
Thanks: 0
Thanked 157 Times in 144 Posts
(Thread Starter)
Correct but I show that was performed on mine in 2006. Socket does not feel real tight but wiggled and jiggled and tickled and now seem to be working.
Attached Images
File Type: jpg taillightrecall.jpg (122.0 KB, 14 views)


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Padgett is offline  
 
#4 Old 11-02-2017
Registered Users
 
Join Date: Aug 2017
Location: Northumberland, England
Vehicle: 2003 SLK 200K
Posts: 303
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 75 Post(s)
Thanks: 75
Thanked 12 Times in 12 Posts
R170 Passenger Stop Light

There’s lots been written about the R170 rear lights. I’ve been there, done that.
I recommend you take the light assembly off the car. Only 3 nuts. You see the design is not MB’s finest hour. The earth plate is also the mounting plate and is a cadmium plated affair.
The bulbs are mounted using a spring contact which doubles as location and electrical connection.
The earth plate gets a little surface corrosion and the contact becomes poor. You then get
Heat that can melt the plastic or
Sparks that burn the plate away or
Just plain intermittent connection
The brake light goes first because it is repeatedly on/off and draws most current.
Treatment means cleaning with an abrasive. This might be a polish with a cutting compound (t cut), wire wool, wet and dry or a dremel with a grind stone.
Mine needed the last one.
Then repair the plate if needed. Mine had a hole which I filled with solder and smoothed off. You may need to use a conductive grease to stop new corrosion.
Then look at the spring contacts. Clean and bend for maximum pressure. If melting is evident, buy a new bulb holder.
Check all the bulbs while you’re in there. Look for corrosion or blackening glass or just bin the lot and fit new, quality bulbs.
Mines been fine for nine months.
Time is about an hour per side. Cost is zero to a few pounds (bucks) depending what’s on your shelf.
Cheers Neil


Sent from my iPhone using Tapatalk
Idiot101, Avel Du and TFP like this.
neileg is offline  
The Following User Says Thank You to neileg For This Useful Post:
#5 Old 11-02-2017
Registered Users
 
Join Date: Oct 2017
Location: Sweden, South part
Vehicle: 2002 SLK 200K , Silver metallic (Special edition)
Other Toys: Notable earlier cars: MGB, Triumph Spitfire, Porsche 914 & 944, Jeep, Bv202 & 206 :-)
Posts: 228
Country:
Chats: 0
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 52 Post(s)
Thanks: 6
Thanked 28 Times in 27 Posts
Quote:
Originally Posted by Padgett View Post
keeps failing. Sharp rap and it works. Once. Bulb is fine. Anything I should know about passenger side stop light wiring ? Just a single filament bulb.
Likely, it's bad contact in the lamp assembly. Contact cleaner may help for a while. Removing,, cleaning with emery paper and possibly solder on top is a permanent fix. I use the tried and tested strategy of "once is never, twice is always" - so if problems comes back after contact cleaner takes it away (electronics variety may be better than WD40, here), removing and repairing the holder is better.

There are ways, with the inserts removed, to get dual reversing lights to work - if that is of any interest to you.
pjb likes this.
Anders S SLK02 is offline  
#6 Old 11-02-2017
6007.us
 
Padgett's Avatar
 
Join Date: Mar 2017
Location: Orlando
Vehicle: '01 SLK320 Lazulithe Blue, '00 SLK230 Bahama Blue (needs interior parts)
Other Toys: Too many others. See web page.
Posts: 2,594
Country:
Chats: 0
Mentioned: 287 Post(s)
Tagged: 0 Thread(s)
Quoted: 573 Post(s)
Thanks: 0
Thanked 157 Times in 144 Posts
(Thread Starter)
Sounds like the best thing is to switch to LED lights, they pull much less current. Am I correct that the stop lamps and backup lamps are 1154 and the tail & turn signal lamps are 1156. Suspect I need ones with the CanBus resistor.
ps33fount likes this.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Padgett is offline  
#7 Old 11-02-2017
Administrator/Founding Member

 
jbanks15's Avatar
 
Join Date: Jun 2006
Location: Tampa, Florida
Vehicle: 2009 SLK 55 AMG Kleemann Supercharger, ECU tune, Headers and LSD, CF Diffuser
Posts: 91,796
Country:
Chats: 38
Mentioned: 471 Post(s)
Tagged: 5 Thread(s)
Quoted: 6547 Post(s)
Thanks: 3,246
Thanked 11,089 Times in 8,443 Posts
Owner's manual says

page 175

Attached Images
File Type: jpg 1.jpg (77.3 KB, 112 views)


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Jeff, US Army Master Sergeant Retired
Administrator/Founding Member
2009 SLK 55 AMG Black/Black
Kleemann Supercharger thread here:

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Kleemann ECU Tune, headers and downpipes thread here:

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Albums:
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

ClearBra
OEM MB Plexiglass Draught Stop
Smarttop version 3.22
Previous - 02 SLK 320, 05 SLK 350
jbanks15 is online now  
#8 Old 11-02-2017
Registered Users
 
Join Date: Aug 2017
Location: Northumberland, England
Vehicle: 2003 SLK 200K
Posts: 303
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 75 Post(s)
Thanks: 75
Thanked 12 Times in 12 Posts
Quote:
Originally Posted by Padgett View Post
Sounds like the best thing is to switch to LED lights, they pull much less current. Am I correct that the stop lamps and backup lamps are 1154 and the tail & turn signal lamps are 1156. Suspect I need ones with the CanBus resistor.


That would help with the heat created by poor contact but won’t help the poor contact. You need good, firm reliable contact with any bulb. No canbus on the R170 as far as I know.
Neil


Sent from my iPhone using Tapatalk
neileg is offline  
#9 Old 11-02-2017
Registered Users
 
Join Date: Oct 2013
Location: Minnesota
Vehicle: Looking to keep Jeff off my back.
Other Toys: Carver 350 Mariner, Boston Whaler Dauntless, 1961 Les Paul Formerly 2003 slk 230
Posts: 550
Country:
Chats: 0
Mentioned: 275 Post(s)
Tagged: 0 Thread(s)
Quoted: 133 Post(s)
Thanks: 3
Thanked 63 Times in 57 Posts
Quote:
Originally Posted by neileg View Post
That would help with the heat created by poor contact but won’t help the poor contact. You need good, firm reliable contact with any bulb. No canbus on the R170 as far as I know.
Neil


Sent from my iPhone using Tapatalk
I had the same prob with mine (and it also had the recall done). Neil's solution is the best. I bought new bulb receptacles as well as they were in rough shape due to arcing. In addition, building up a good contact as outlined above takes care of it.
Mn car guy is online now  
#10 Old 11-02-2017
Registered Users
 
ps33fount's Avatar
 
Join Date: Jul 2017
Location: Cape Coral FL
Vehicle: 2005 SLK55 AMG
Other Toys: too many things to take care of and use properly
Posts: 1,582
Country:
Chats: 0
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 83 Post(s)
Thanks: 268
Thanked 57 Times in 57 Posts
I have seen bulbs break the filament from vibration, start working again with a sharp rap to the housing that causes the filament to touch and then resistance heat sticks the two halves together until the next hard rap separates them again. Currently have a bulb on our Vacuum doing this exact thing that I do not care to fix. That bulb stays on, flashes, stays off depending on the walls you bump into.

Had this problem on a trail bike headlight as well, too much vibration broke the filament, didn't notice until I was 20 miles from home and it was starting to get dark, fortunately, I hit the housing, it started working and made it home before it failed totally.

But then, I am certain you have replaced the bulb and still have the problem. Contacts in the plug, ground connection, and possible break in the wiring, had all these problems at one time or another. Other than company cars, for a long time the newest car I had owned was 20 years old, with years of problems stored up in them.
ps33fount is offline  
#11 Old 11-02-2017
Registered Users
 
Join Date: Oct 2013
Location: Minnesota
Vehicle: Looking to keep Jeff off my back.
Other Toys: Carver 350 Mariner, Boston Whaler Dauntless, 1961 Les Paul Formerly 2003 slk 230
Posts: 550
Country:
Chats: 0
Mentioned: 275 Post(s)
Tagged: 0 Thread(s)
Quoted: 133 Post(s)
Thanks: 3
Thanked 63 Times in 57 Posts
Quote:
Originally Posted by neileg View Post
That would help with the heat created by poor contact but won’t help the poor contact. You need good, firm reliable contact with any bulb. No canbus on the R170 as far as I know.
Neil


Sent from my iPhone using Tapatalk
I had the same prob with mine (and it also had the recall done). Neil's solution is the best. I bought new bulb receptacles as well as they were in rough shape due to arcing. In addition, building up a good contact as outlined above takes care of it.
Mn car guy is online now  
#12 Old 11-02-2017
6007.us
 
Padgett's Avatar
 
Join Date: Mar 2017
Location: Orlando
Vehicle: '01 SLK320 Lazulithe Blue, '00 SLK230 Bahama Blue (needs interior parts)
Other Toys: Too many others. See web page.
Posts: 2,594
Country:
Chats: 0
Mentioned: 287 Post(s)
Tagged: 0 Thread(s)
Quoted: 573 Post(s)
Thanks: 0
Thanked 157 Times in 144 Posts
(Thread Starter)
Yes have that (enlarged below):

Problem is that it shows four bulbs and my taillight has three single filament bulbs, all the same size, one amber coated (is that what NA means ?). It also shows 1154s which show as dual filament and all of mine are single filament.

Bulb makings are not normal, suspect European (eg. PA21498).

So thought it best to ask if anyone can recommend LEDs that work in the taillight of an R170 (facelift).

I have checked the normal resources just the answers have been inconsistent with my taillights.
Attached Images
File Type: jpg rearbulbs.jpg (22.3 KB, 9 views)


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Padgett is offline  
#13 Old 11-02-2017
Registered Users
 
Join Date: Aug 2017
Location: Northumberland, England
Vehicle: 2003 SLK 200K
Posts: 303
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 75 Post(s)
Thanks: 75
Thanked 12 Times in 12 Posts
US/UK/EU lamps are different.
Stick to guidance from your own country.
N


Sent from my iPhone using Tapatalk
neileg is offline  
#14 Old 11-02-2017
6007.us
 
Padgett's Avatar
 
Join Date: Mar 2017
Location: Orlando
Vehicle: '01 SLK320 Lazulithe Blue, '00 SLK230 Bahama Blue (needs interior parts)
Other Toys: Too many others. See web page.
Posts: 2,594
Country:
Chats: 0
Mentioned: 287 Post(s)
Tagged: 0 Thread(s)
Quoted: 573 Post(s)
Thanks: 0
Thanked 157 Times in 144 Posts
(Thread Starter)
Anyone in the US have the answer. BTW my owners manual says "USA Edition C 2001" but I just have four single filament bulbs, one amber. Three large (stop, backup, turn) and 1 smaller (67?) for taillights. While the 1154 mentioned in the manual for stop and backup (page 175) is dual filament so is evidently wrong.

The 67 is in a different place passenger vs driver which had me going for a bit.

Have looked on the bulbs themselves and those markings are different. e.g. P12498

However the manual says 21W for the three biggies (my oems are marked 21w) while an 1156 is the proper configuration but 26.9W and is brighter/hotter which may explain the heat issue if 1156s were used for P12498s

So would like to replace the biggies with LED but apparently the current is sensed by the computer (got a warning on dash when stop light was out) so would appreciate knowing what others have found to be a good CANBUS LED replacement if someone here has made the swap. YWTK.

So while the 5W 67 taillight is ok, I'd like to replace the biggies. Has anyone used these ?


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Padgett is offline  
#15 Old 11-03-2017
Registered Users
 
Join Date: Oct 2017
Location: Sweden, South part
Vehicle: 2002 SLK 200K , Silver metallic (Special edition)
Other Toys: Notable earlier cars: MGB, Triumph Spitfire, Porsche 914 & 944, Jeep, Bv202 & 206 :-)
Posts: 228
Country:
Chats: 0
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 52 Post(s)
Thanks: 6
Thanked 28 Times in 27 Posts
Quote:
Originally Posted by Padgett View Post
Anyone in the US have the answer. BTW my owners manual says "USA Edition C 2001" but I just have four single filament bulbs, one amber. Three large (stop, backup, turn) and 1 smaller (67?) for taillights. While the 1154 mentioned in the manual for stop and backup (page 175) is dual filament so is evidently wrong.

The 67 is in a different place passenger vs driver which had me going for a bit.

Have looked on the bulbs themselves and those markings are different. e.g. P12498

However the manual says 21W for the three biggies (my oems are marked 21w) while an 1156 is the proper configuration but 26.9W and is brighter/hotter which may explain the heat issue if 1156s were used for P12498s

So would like to replace the biggies with LED but apparently the current is sensed by the computer (got a warning on dash when stop light was out) so would appreciate knowing what others have found to be a good CANBUS LED replacement if someone here has made the swap. YWTK.

So while the 5W 67 taillight is ok, I'd like to replace the biggies. Has anyone used these ?
I have a facelift (2002) and have overhauled the lamp holders recently (due to indicated reversing lamp failure, and found corrosion). The lamps are not "smart lamps" in any way, and the lamp sensing circuit simply senses current draw. (Anecdotical: my auto DRL circuit turns on the fog lamps only, resulting in a lamp-out indication, likely because the rear lamps in the factory fog circuit are not drawing current at the same time). If you go the LED way, you will need a (integrated) resistor that matches the lamp, to get current up to the necessary level.

LED¨s are good, cause they hold "forever", but given the design of the monitoring circuit, current draw may not be much less.
Anders S SLK02 is offline  
#16 Old 11-03-2017
6007.us
 
Padgett's Avatar
 
Join Date: Mar 2017
Location: Orlando
Vehicle: '01 SLK320 Lazulithe Blue, '00 SLK230 Bahama Blue (needs interior parts)
Other Toys: Too many others. See web page.
Posts: 2,594
Country:
Chats: 0
Mentioned: 287 Post(s)
Tagged: 0 Thread(s)
Quoted: 573 Post(s)
Thanks: 0
Thanked 157 Times in 144 Posts
(Thread Starter)
Just had one light assembly out (three nuts take an 8mm socket) and looks new (common in central Florida). Suspect the key is to use 21w bulbs and not 27W 1156's.

No easy place to add 6 ohm resistors so will stay with stock 21w lights for now.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Padgett is offline  
#17 Old 11-03-2017
Premium Member
 
savcom's Avatar
 
Join Date: Nov 2015
Location: Wiltshire, UK
Vehicle: 2002 Blue SLK320 known as 'Silkie"
Other Toys: 2010 Grey BMW F10 528i
Posts: 2,574
Country:
Chats: 0
Mentioned: 491 Post(s)
Tagged: 0 Thread(s)
Quoted: 609 Post(s)
Thanks: 167
Thanked 299 Times in 242 Posts
Garage
Send a message via Skype™ to savcom
I had my driver's side rear light and brake light both give trouble recently. I took both my rear light clusters off and stripped each down then cleaned contacts with a fibreglass pencil and contact cleaner. No issues since. Took less than 30 minutes.

Also took opportunity to clean all the accumulated gunk from the bodywork and clusters too. Now the lights work AND the car is cleaner.

Now : Silkie - 2002 Lazulithe Blue Mercedes Benz SLK320
Also
: 2011 Sophisto Grey BMW F10 528i SE


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Brings a smile to my face whenever I drive her



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


Previous :
1965 Triumph Herald 12/50 ... 1972 Austin 1300 ... 1982 Volvo 265GLE ...

1987 Volkswagen Caravelle ... 1997 Rover 214si ... 2002 BMW E39 530D

If I've helped you sort your problem(s) out, click the 'Thanks' button on the right hand side under my signature.
savcom is online now  
#18 Old 11-03-2017
6007.us
 
Padgett's Avatar
 
Join Date: Mar 2017
Location: Orlando
Vehicle: '01 SLK320 Lazulithe Blue, '00 SLK230 Bahama Blue (needs interior parts)
Other Toys: Too many others. See web page.
Posts: 2,594
Country:
Chats: 0
Mentioned: 287 Post(s)
Tagged: 0 Thread(s)
Quoted: 573 Post(s)
Thanks: 0
Thanked 157 Times in 144 Posts
(Thread Starter)
Agree, R170 is quite easy to work on. In my case it was clean so a quick wipe took care of dust and a bit of contact stretching was all it needed. Different taillight location L vs R had me going for a bit.

Now have a pair of spare 21W clears coming in and 21W amber single contact I had to swap for the OEM dual in the projectors is a good spare for the turn signals.

ps FMVSS requires amber front and red or amber rear turn signals so clear is right out in the US.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Padgett is offline  
#19 Old 11-04-2017
Registered Users
 
Join Date: Aug 2017
Location: Northumberland, England
Vehicle: 2003 SLK 200K
Posts: 303
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 75 Post(s)
Thanks: 75
Thanked 12 Times in 12 Posts
The UK requires Amber turn signals back and front so no clear for us either.
N


Sent from my iPhone using Tapatalk
savcom likes this.
neileg is offline  
#20 Old 04-21-2018
Registered Users
 
Join Date: Mar 2018
Location: Chicago IL
Vehicle: 2002 SLK 32
Posts: 34
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Used the search feature and found this thread, it appears I might need some assistance to search for the correct fix, my running light does not work on the passenger side and attached a image to show that the connections are good. So any help to figure out why the bulb does not work would be appreciated. I realize it is the picture of the back of the light, but each bulb socket is fresh and show no signs of corrosion. So I am wondering where to start? Wiring diagram? Check ground? The brake light and turn signal work fine only running light on bottom outside. Also, if someone can inform me what the two small bulbs that are closest to the trunk do that would be great as these do not work either.
Attached Images
File Type: jpg 20180421_210903.jpg (47.8 KB, 12 views)
rottdogsparky is offline  
Sponsored Links
Advertisement
 
Reply

  Lower Navigation
Go Back   Mercedes Benz SLK Forum > Mercedes Benz R170 SLK Class Cars > SLK R170 General Discussion

Bookmarks

Quick Reply
Message:
Options
Upload your files to MEGAUPLOAD
Upload your images to ImageShack

Register Now



In order to be able to post messages on the Mercedes Benz SLK Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
slk r170 ' 99 dome light won't turn off automatically 21528 SLK R170 General Discussion 6 10-27-2017 01:24 PM
Need to find the Interior light Wiring in the cab on a R170 ixion SLK R170 General Discussion 1 05-04-2016 01:01 PM
Help! R170 Alarm won't stop going off!! Jay Cartay SLK R170 General Discussion 14 06-27-2014 06:55 AM
US Group Buy: Rare SLK R170 3d Brake Light (Clear and Smoke versions) JaysonM SLK R170 General Discussion 109 07-25-2013 10:53 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
 

Clubs, Garage Plus vBulletin Plugins by Drive Thru Online, Inc.