'03 E500 idle
Thread Starter
Junior Member
Joined: Dec 2013
Posts: 33
Likes: 0
From: Bay Area, CA
2003 e500
'03 E500 idle
Happy New Year everyone.
In the mornings when I start the car, the tach needle jumps a tiny bit while idling. This typically happens for the first 5 or 10 minutes or once the engine is up to temp.
The revs only fluctuate about 200-300 rpm, but I notice that the tach does move a little while the car heats up.
Is this a big concern? Or is it okay because the car is trying to heat up.
Also, there is a small ticking noise, I'm not sure if that is regular for the 5.0 L V8 or if thats a sign for something else.
I have hooked it up to an OBD II scanner and no misfire codes come up
In the mornings when I start the car, the tach needle jumps a tiny bit while idling. This typically happens for the first 5 or 10 minutes or once the engine is up to temp.
The revs only fluctuate about 200-300 rpm, but I notice that the tach does move a little while the car heats up.
Is this a big concern? Or is it okay because the car is trying to heat up.
Also, there is a small ticking noise, I'm not sure if that is regular for the 5.0 L V8 or if thats a sign for something else.
I have hooked it up to an OBD II scanner and no misfire codes come up
Member
Joined: Oct 2014
Posts: 155
Likes: 1
From: SWFL
2008 E350, 2010 GL550
It's completely normal. It's just the engine trying to heat the cats up. Nothing to worry about. As for the ticking that's tough to say the 113 engine is pretty loud and you can hear the valve train easily but without hearing it is hard to say. I would take it somewhere just to check if you feel that it's something out of the ordinary.
Thread Starter
Junior Member
Joined: Dec 2013
Posts: 33
Likes: 0
From: Bay Area, CA
2003 e500
Thanks for the replies guys.
One other thing, when i accelerate a little harder than normal, as if merging onto a freeway, once I hit 1,500 to 2,000 + rpms the ticking sound is louder is much more pronounced. It is not the roar of the V8 but a distinct ticking sound.
A while back I had my engine mounts replaced, do you think its possible that the mechanic did not fully tighten the exhaust header to the motor? would this cause the louder (almost truck-like) sound of accelerating?
Could very well be the "normal" valve train sound like Blitz mentioned
I will try to record the sound and post a link to it in the next few days.
One other thing, when i accelerate a little harder than normal, as if merging onto a freeway, once I hit 1,500 to 2,000 + rpms the ticking sound is louder is much more pronounced. It is not the roar of the V8 but a distinct ticking sound.
A while back I had my engine mounts replaced, do you think its possible that the mechanic did not fully tighten the exhaust header to the motor? would this cause the louder (almost truck-like) sound of accelerating?
Could very well be the "normal" valve train sound like Blitz mentioned
I will try to record the sound and post a link to it in the next few days.
