BT owners.... did you know about the glow plug light?
Thread Starter
Junior Member
Joined: Dec 2014
Posts: 58
Likes: 4
From: bay area, CA
2013 GL350
BT owners.... did you know about the glow plug light?
I knew I should've read the manual sooner... but over the weekend I opened it up and read about starting the diesel engine.
You're suppose to wait for the glow plug light to go off before starting the engine... I wish the sales guy would've told me this when he did the thorough go-over with me after the sale.
Member
Joined: Jul 2013
Posts: 138
Likes: 1
From: Trois Rivieres, Quebec
SLK 350 2013
The light does light up for a very brief moment (less a second usually).
I have found, even at -30 Celsius, the plugs heat up VERY fast. I've never seen it light for more than 2 seconds if that.
I have found, even at -30 Celsius, the plugs heat up VERY fast. I've never seen it light for more than 2 seconds if that.
Thread Starter
Junior Member
Joined: Dec 2014
Posts: 58
Likes: 4
From: bay area, CA
2013 GL350
so i've owned my BT250 for about 4 weeks now, and I've started the engine without waiting for the glow plugs light about 100 times... hopefully I haven't done any damage 
I was just shocked that the Benz sales guy didn't mention it... He made an appointment with me to bring the car back and spend a good 30 minutes go to over every feature of the GLK...
I was just shocked that the Benz sales guy didn't mention it... He made an appointment with me to bring the car back and spend a good 30 minutes go to over every feature of the GLK...
MBWorld Fanatic!
Joined: Aug 2010
Posts: 1,136
Likes: 7
From: Los Angeles
2013 Infiniti G37 Coupe; 2011 GLK 350 w/ Premium 1, Multimedia & Sport Appearance; I LOVE IT!
MB diesels have had those since the beginning of time.
You haven't hurt anything; if the glowplugs weren't hot enough the engine just wouldn't start...
You haven't hurt anything; if the glowplugs weren't hot enough the engine just wouldn't start...
Super Member
Joined: Jan 2011
Posts: 571
Likes: 17
From: Redding, CA
'85 190D , '12 E350 BlueTec, '13 GLK 250 BlueTec
I didn't know it existed until someone posted about it. I never waited and had to look to find it . IT'S THERE!! Very, very brief.
If your car starts, glow plugs, or something else, did its job. You can't hurt itl
Salesmen are sooo knowlegeable! In test diving a car I got in and started it right away. Never noticed the glow plug light. I asked the salesman. He very knowingly advised me the car sensed your approach, lighted up, and by the time you got in to start, the cylinders were hot enough to fire up!
I don't know if in extreme cold, as in Canada, the light stays lit any longer, but in my moderate climate, if you blink, you miss it its that quick!
If your car starts, glow plugs, or something else, did its job. You can't hurt itl
Salesmen are sooo knowlegeable! In test diving a car I got in and started it right away. Never noticed the glow plug light. I asked the salesman. He very knowingly advised me the car sensed your approach, lighted up, and by the time you got in to start, the cylinders were hot enough to fire up!
I don't know if in extreme cold, as in Canada, the light stays lit any longer, but in my moderate climate, if you blink, you miss it its that quick!
