ANOTHER major mechanical issue FML
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Super Member
Joined: Oct 2009
Posts: 681
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From: New Jersey/ Aviano Air Base, Italy
'08 c300 sport
ANOTHER major mechanical issue FML
Sorry to bother again about yet ANOTHER mechanical issue...
So basically, two things that have been happening with my car:
-while I'm driving, the speedometer will sometimes randomly drop to 0 and then jump back up. That happens most of the time but there have been many times when ALL the gauges drop to 0 as if the car was off. This always happens when I'm just cruising but the throttle doesn't die and I can still give it gas. It happened when I was driving at 60 mph so imagine how I almost ***** my pants when I saw it.
-and issue number 2 which I'm sure is related is that my car is having a lot of trouble starting. The other night, when I left my friends house my car wouldn't start at all. I knew it wasn't the battery because the lights were fine (no dimming) and there was no click when the key was turned. When i turned the key, ABSOLUTELY nothing happened. No sound or anything.
So WTF is going on. I feel like my car is dying and it just so happens that it begins after by 50,000 mile warranty... It's getting extremely annoying and these things should not be happening. Any input would be greatly appreciated
So basically, two things that have been happening with my car:
-while I'm driving, the speedometer will sometimes randomly drop to 0 and then jump back up. That happens most of the time but there have been many times when ALL the gauges drop to 0 as if the car was off. This always happens when I'm just cruising but the throttle doesn't die and I can still give it gas. It happened when I was driving at 60 mph so imagine how I almost ***** my pants when I saw it.
-and issue number 2 which I'm sure is related is that my car is having a lot of trouble starting. The other night, when I left my friends house my car wouldn't start at all. I knew it wasn't the battery because the lights were fine (no dimming) and there was no click when the key was turned. When i turned the key, ABSOLUTELY nothing happened. No sound or anything.
So WTF is going on. I feel like my car is dying and it just so happens that it begins after by 50,000 mile warranty... It's getting extremely annoying and these things should not be happening. Any input would be greatly appreciated
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From: near Vancouver, Canada
2010 C300 4matic Special Edition
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Thread Starter
Super Member
Joined: Oct 2009
Posts: 681
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From: New Jersey/ Aviano Air Base, Italy
'08 c300 sport
Member
Joined: Mar 2009
Posts: 117
Likes: 2
From: OC, So Cal
C300 Sport AND 93 Mazda RX7 Single Turbo
If these cars are anything like other cars, maybe your first problem is your Vehicle Speed Sensor (VSS) in the tranny. But since all the gauges turn off who knwos, its sounds like something electrical, not mechanical. Maybe theres some loose connection somewhere in your gauge cluster or its related to ur ignition problem. Like it thinks the key is out so it shuts off all the gauges.
how did you get your car started at ur friends house? Sometimes i turn the key and nothing happens and i just turn it back to the off position and turn it to start again.
how did you get your car started at ur friends house? Sometimes i turn the key and nothing happens and i just turn it back to the off position and turn it to start again.
Super Member
Joined: Nov 2007
Posts: 923
Likes: 1
From: North Jerzeee
Lexus IS 350 F Sport
It seems as if MB like the other " germen " cars have it's own electrical issues from time to time ?? I've had numerous issues with the alarm and lights one day then would disappear the next ?? Kinda scarey to think if it's not under warranty and the service department needs to replace an entire unit .... how much $$$ is that gonna cost yikess 
Good luck and hopefully it was simply a " fluke " and a one time occurance ??
Good luck and hopefully it was simply a " fluke " and a one time occurance ??
Thread Starter
Super Member
Joined: Oct 2009
Posts: 681
Likes: 0
From: New Jersey/ Aviano Air Base, Italy
'08 c300 sport
If these cars are anything like other cars, maybe your first problem is your Vehicle Speed Sensor (VSS) in the tranny. But since all the gauges turn off who knwos, its sounds like something electrical, not mechanical. Maybe theres some loose connection somewhere in your gauge cluster or its related to ur ignition problem. Like it thinks the key is out so it shuts off all the gauges.
how did you get your car started at ur friends house? Sometimes i turn the key and nothing happens and i just turn it back to the off position and turn it to start again.
how did you get your car started at ur friends house? Sometimes i turn the key and nothing happens and i just turn it back to the off position and turn it to start again.
Thread Starter
Super Member
Joined: Oct 2009
Posts: 681
Likes: 0
From: New Jersey/ Aviano Air Base, Italy
'08 c300 sport
It seems as if MB like the other " germen " cars have it's own electrical issues from time to time ?? I've had numerous issues with the alarm and lights one day then would disappear the next ?? Kinda scarey to think if it's not under warranty and the service department needs to replace an entire unit .... how much $$$ is that gonna cost yikess
Good luck and hopefully it was simply a " fluke " and a one time occurance ??
Good luck and hopefully it was simply a " fluke " and a one time occurance ??
the wife tells me everyday 
. the 204. 
MBWorld Fanatic!
Joined: Feb 2004
Posts: 3,986
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From: SEATTLE WASHINGTON USA
'08 C300 Lux Barolo Red Beige Leather P2 MM 18" wheels '84 944
If not, it's a warranty claim and the dealer will fix it.
BTW, it's an electrical problem and has nothing to do with spark plugs or the rear door handles.
Member
Joined: Mar 2009
Posts: 117
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From: OC, So Cal
C300 Sport AND 93 Mazda RX7 Single Turbo
Yeah, I guess it's something electrical. I'm gonna bring it to MB this week and pray that they don't charge me out the ***. When I was at my friends house I tried it 2-3 times and it didn't work so I went inside to warm up since I was freezing. 5 minutes later, walked back outside to give it one more try and it turned on no problem
