SLK320 2003 KEY, IDLE, HESITATION - Mercedes-Benz Forum
 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 09-05-2009, 02:56 PM
BenzWorld Junior Member
 
AntawnDavison's Avatar
 
Date registered: Aug 2009
Vehicle: SLK320 2003
Location: Tampa Bay
Posts: 19
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
SLK320 2003 KEY, IDLE, HESITATION

Okay, so I get only one key with car. Needs a little jiggling to turn the ignition. Went to dealer today. Parts took all my info then came back and
told me the part is no longer available. Same per the valet key.
I find that ridiculous, though the parts guy is going to call Mercedes and ask "whats the dilly yo".
I get the popular hesitation upon acceleration. Its dangerous when pulling into traffic and then sometimes idles at 300, ready to stall when stopped or in park, hence I think it may be more air flow meter than TPS. Any thoughts are welcome. I dont have a code reader. Autozone said theirs would only give a general code that probably wouldnt help.
AntawnDavison is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 09-06-2009, 01:02 AM
BenzWorld Elite
 
Chris A's Avatar
 
Date registered: Jun 2006
Vehicle: 2001 SLK 320
Location: Lodi, California
Posts: 1,248
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Dont rule out the K40. Even though mine looked good and was a newer model mine was still bad. My fuel pressure would drop down pretty low when it was acting up.

Women can fake orgasms. . . . men can fake whole relationships.
Chris A is offline  
#3 (permalink) Old 09-06-2009, 08:31 AM
BenzWorld Elite
 
Chris A's Avatar
 
Date registered: Jun 2006
Vehicle: 2001 SLK 320
Location: Lodi, California
Posts: 1,248
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
After reading your post again I would swear it is your K40. When the idle is low does it seem to run on about 4 cylinders.. Does it act up more when it is hot? Does it start up sometimes perfectly then other times start up rough. If so I would say it is your K40 relay.

Women can fake orgasms. . . . men can fake whole relationships.
Chris A is offline  
#4 (permalink) Old 09-06-2009, 11:36 AM
BenzWorld Junior Member
 
AntawnDavison's Avatar
 
Date registered: Aug 2009
Vehicle: SLK320 2003
Location: Tampa Bay
Posts: 19
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Check engine light is NOT on. Would it still code if any of these were problem?

no thread
AntawnDavison is offline  
#5 (permalink) Old 09-08-2009, 05:15 AM
BenzWorld Elite
 
Chris A's Avatar
 
Date registered: Jun 2006
Vehicle: 2001 SLK 320
Location: Lodi, California
Posts: 1,248
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You could try the one at Auto zone. There may be a stored code. Cant hurt and it is free.

Women can fake orgasms. . . . men can fake whole relationships.
Chris A is offline  
#6 (permalink) Old 09-08-2009, 11:47 AM
BenzWorld Veteran
 
Date registered: Sep 2006
Vehicle: 05 E55 AMG and 01 SLK230
Location: Sacramento, CA
Posts: 611
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Antawn, please fill in your profile so we know what year your car is and your location. Depending on the year of your car (in order of probability):

till 2000: K40 Relay, Fuel Pump, MAS, CPS
2001-04: Fuel Pump, MAS, CPS, K40
Ryououki is offline  
Reply

  Mercedes-Benz Forum > Mercedes-Benz Roadster Forums > R170 SLK Class


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
Display Modes
Linear Mode Linear Mode



Similar Threads
Topic Author Forum Replies Last Post
87 420sel High idle and bad hesitation/stumble off idle. Please help! marzban123 W126 S,SE,SEC,SEL,SD,SDL Class 18 07-10-2009 12:42 AM
High Idle and Off Idle Hesitation Saga osprey170 W126 S,SE,SEC,SEL,SD,SDL Class 3 03-11-2009 06:18 PM
Idle and Hesitation stormjade R129 SL Class 2 02-25-2008 12:58 PM
bogging and hesitation at idle pyro_la W124 E,CE,D,TD Class 27 08-07-2007 10:23 AM
Idle hesitation Kingorcus W126 S,SE,SEC,SEL,SD,SDL Class 4 02-24-2005 08:43 AM

Posting Rules  
You may not post new threads
You may not 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