Intermittent Starting Problem - MBtech208, anyone else??
Thread Starter
MBWorld Fanatic!
Joined: Dec 2001
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From: Houston, TX
Used to be a CLK430
Intermittent Starting Problem - MBtech208, anyone else??
Okay so every once in a while, especially when the car is warm, it hesitates before starting. Meaning after I click the key to the right, the car will just sit there and try to start, but will take a good 4-5 seconds to 'catch'.
So today I started the car after it sitting for a week and it fired up like a champ. Went to the video store (4 mile drive) and when I came back out, the car was doing it again, except this time it didn't catch, tried again, nothing, and 3x more times, nada! Gave it time to contemplate starting, and on the 6th try it started. Any idea is going on??
This only happens when the car is hot, I'm confused and the dealer doesn't have a clue. I only have 250 miles left on the warranty...any ideas??
TIA!!
So today I started the car after it sitting for a week and it fired up like a champ. Went to the video store (4 mile drive) and when I came back out, the car was doing it again, except this time it didn't catch, tried again, nothing, and 3x more times, nada! Gave it time to contemplate starting, and on the 6th try it started. Any idea is going on??
This only happens when the car is hot, I'm confused and the dealer doesn't have a clue. I only have 250 miles left on the warranty...any ideas??
TIA!!
Thread Starter
MBWorld Fanatic!
Joined: Dec 2001
Posts: 1,028
Likes: 0
From: Houston, TX
Used to be a CLK430
Originally posted by f4i 954
What engine, does it make any noise?
If you have a 112 or 113 engine, it may be the starter motor.
They have to apply lubricant to starter motor & fly wheel teeth.
What engine, does it make any noise?
If you have a 112 or 113 engine, it may be the starter motor.
They have to apply lubricant to starter motor & fly wheel teeth.
Thanks!
MBWorld Fanatic!
Joined: Aug 2002
Posts: 1,005
Likes: 33
From: Germany
'00 S320 W220, '98 A160 W168/ sold in 2005 '86 260 E W124 '90 260E W124
Hot start problems may have several causes, but if your shop does not have a clue get another one. For a qualified shop hot starting problems are just one of the simplest things to get rectified.
Just from remote a few causes:
+Cold start valve gets (wrongly) a signal to enrich the mixture
+Cold start valve is leaking fuel
+temperatur switches activating the starting controls submit false values
+air mass measurement wrong
+leaking injection valves
+CO value wrong (O2 sensor??)
and a few more
Just from remote a few causes:
+Cold start valve gets (wrongly) a signal to enrich the mixture
+Cold start valve is leaking fuel
+temperatur switches activating the starting controls submit false values
+air mass measurement wrong
+leaking injection valves
+CO value wrong (O2 sensor??)
and a few more
Senior Member
Joined: Mar 2002
Posts: 392
Likes: 0
From: Belgium
Originally posted by bamberger_1
...Just from remote a few causes:
+Cold start valve gets (wrongly) a signal to enrich the mixture
+Cold start valve is leaking fuel
+temperatur switches activating the starting controls submit false values
+air mass measurement wrong
+leaking injection valves
+CO value wrong (O2 sensor??)
and a few more...
...Just from remote a few causes:
+Cold start valve gets (wrongly) a signal to enrich the mixture
+Cold start valve is leaking fuel
+temperatur switches activating the starting controls submit false values
+air mass measurement wrong
+leaking injection valves
+CO value wrong (O2 sensor??)
and a few more...
And...where is that cold start valve located?
MBWorld Fanatic!
Joined: Aug 2002
Posts: 1,005
Likes: 33
From: Germany
'00 S320 W220, '98 A160 W168/ sold in 2005 '86 260 E W124 '90 260E W124
Originally posted by patrick
Pardon me,...but I do not think any of these will cause the problem!
And...where is that cold start valve located?
Pardon me,...but I do not think any of these will cause the problem!
And...where is that cold start valve located?
Whatever you say !
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