2002 E320 engine noise
12-30-2010, 07:26 PM
#1
Junior Member
Thread Starter
Join Date: Dec 2010
Posts: 15
Likes: 0
Received 0 Likes
on
0 Posts
e320
2002 E320 engine noise
When car is cold there is a ticking noise from L/Hand side of engine. Noise goes away when engine is at operating temp.. anyone has any suggestion, oil is change at 5000. miles interval Mobil 1 ( 10w 40 )
12-30-2010, 07:35 PM
#2
MBWorld Fanatic!
Join Date: Oct 2007
Location: SoCal
Posts: 1,564
Likes: 0
Received 19 Likes
on
19 Posts
98 Brilliant Silver E320 Wagon
Hello and Welcome to the forum -
I believe what you are hearing is the MOT valve. It's a solenoid valve which bleeds excess fuel back to the fuel tank. It's just behind the windshield washer tank and usually has the letters 'MOT' on the top. Sound is normal.
I believe what you are hearing is the MOT valve. It's a solenoid valve which bleeds excess fuel back to the fuel tank. It's just behind the windshield washer tank and usually has the letters 'MOT' on the top. Sound is normal.
01-03-2011, 02:13 PM
#4
Super Member
Join Date: Jun 2006
Location: the Netherlands
Posts: 525
Likes: 0
Received 0 Likes
on
0 Posts
'01 W210 E320 CDI
Could be a valve lifter (valve tap) these are hydraulic. I noticed 10W-40 wich is semi-synthetic. Isn't there supposed to be fully synthetic 5W-40 or 0W-40 in your engine?
01-04-2011, 01:31 AM
#5
Junior Member
Thread Starter
Join Date: Dec 2010
Posts: 15
Likes: 0
Received 0 Likes
on
0 Posts
e320
Oil
Hi Lancelot,
I am using Mobil 1, 10W-40 which is Fully Synthetic... I thing u r correct when u suggested a valve lifter
Thanks
01-11-2011, 02:33 PM
#6
Senior Member
I would change oil viscosity to 0W-40. Pumps up faster at start. My 2002 E320 ran strong for 155K with Mobil 1 0W-40 on your 5K oil change cycle for 8 years before I sold it. Never any oil-related issues.
