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#21 (permalink) Old 12-05-2012, 06:14 AM
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Originally Posted by BB Benz View Post
Anyone considered Teeing in a sight glass for air in the head detection at the header hose? That would sure improve my peace of mind.
Let us know when you ..... and post pics

Last edited by chieftmc; 12-05-2012 at 06:28 AM.
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#22 (permalink) Old 04-08-2013, 05:20 PM
 
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Quote:
Originally Posted by Schlauwagen View Post
Hi All..

Many thanks for your input.

While our Northern Brethrens are battening down their Smarties due to TS/Hurr. SANDY.......Sandy is to skirt my State so took the liberty in doing my first coolant dance in my garage!

1) Locate the lower radiator drain hose; right front fender; under the panel..

************

Remove 2 of these screws; one on each side



Drop the panel and weigh it down with !!!



Locate hose clamp..unclamp; remove hose(whew)..drain coolant



Already had ss clamp attached; previous owner obviously had coolant changed at one time.



Open engine block bolt and drain...



Reclamp radiator hose and reattach underbody panel; reinsert engine block drain bolt and tighten.

****************************************

Position one way valve out of the way for access to header hose.



Locate header hose and unclamp..



Remove hose and have SWMBO pour..... >



into radiator expansion tank...observe coolant coming out of header nipple; reinsert header hose and clamp...It's been "burped"...

Fill the rest of the coolant till MAX mark. Go for test drive...check level..add if necessary.

Now: manual says that my system holds 4.5 qts = 4.3l, but I could only add 4 qts=3.78l. I believe I drained the old coolant completely unless the water pump retained some! Now I am 0.5 qts short...cause for worry...air still there??

Expansion tank is at MAX level. Will sink below MAX overnight when coolant cools...add more to attain MAX ???

I did the procedure "cold"....was not running the engine when "burping", just bled the system cold!

cheers...
Good writeup!

I'm finally changing mine out later this week.
-What size is the hose clamp? Can anyone conform that the OEM clamp can't be reused?
- What size socket is the block bolt? Are we putting anything on the threads before reinstalling? Retorque bolt specs?
- Is the header hose on the side of the block? (B11/4 from #15?) Can someone post a side view of the header hose? The hose i'm thinking of looks like a vacuum hose.
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#23 (permalink) Old 04-09-2013, 06:35 AM
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Originally Posted by Schlauwagen View Post
Thank you guys for all the "Thanks"...By the way I could really be more specifically detailed in regard to photos but found out that you can post only 10 images..gggrrrrr. Hmmnnn; WHY! Coming from ADVrider.com I could post images with abandon . Now could I post 10 images per post, and call it Coolant-1; Coolant-2 = 20 images??

You guys need to answer my querry regarding the 0.5 qts shortage..any worries:eek:.

Brakes are next...

cheers...

Since this ZOMBIE is here, I think the other 1/2 quart came from the heater core

IF you didn't have the heater on MAX, the valve was closed and left the core coolant behind, not a biggie but I'm guessing that's where it came from
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#24 (permalink) Old 04-09-2013, 07:07 AM
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All that just to change antifreeze.

I wonder what MB will charge us non DIY's to do this little "service".

A couple of posters on this list have been unable to successfully do the burp and have ended up with overheated engines. A2Jack.
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#25 (permalink) Old 10-12-2013, 10:01 PM
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Quote:
Originally Posted by Schlauwagen View Post
Hi All..

Many thanks for your input.

While our Northern Brethrens are battening down their Smarties due to TS/Hurr. SANDY.......Sandy is to skirt my State so took the liberty in doing my first coolant dance in my garage!

1) Locate the lower radiator drain hose; right front fender; under the panel..

************

Remove 2 of these screws; one on each side



Drop the panel and weigh it down with !!!



Locate hose clamp..unclamp; remove hose(whew)..drain coolant



Already had ss clamp attached; previous owner obviously had coolant changed at one time.



Open engine block bolt and drain...



Reclamp radiator hose and reattach underbody panel; reinsert engine block drain bolt and tighten.

****************************************

Position one way valve out of the way for access to header hose.



Locate header hose and unclamp..



Remove hose and have SWMBO pour..... >



into radiator expansion tank...observe coolant coming out of header nipple; reinsert header hose and clamp...It's been "burped"...

Fill the rest of the coolant till MAX mark. Go for test drive...check level..add if necessary.

Now: manual says that my system holds 4.5 qts = 4.3l, but I could only add 4 qts=3.78l. I believe I drained the old coolant completely unless the water pump retained some! Now I am 0.5 qts short...cause for worry...air still there??

Expansion tank is at MAX level. Will sink below MAX overnight when coolant cools...add more to attain MAX ???

I did the procedure "cold"....was not running the engine when "burping", just bled the system cold!

cheers...

Wanted to say thank you for this guide!

I had the front of the car jacked up about 12" and the burping method worked great!

Just peformed a coolant flush and fill today. The burping method, by removing the hose attached to the cylinder block helped a ton!

A couple of notes:

I WAS able to retain the original clip on the radiator hose, it did not bend nor break.

I used a wet vac to pull any latent / left over coolant out of the system.

I used the burp method that requires you to pull the hose off the cylinder head and this ensured that I had no latent / left over air bubbles in the system.
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#26 (permalink) Old 10-13-2013, 07:27 AM
 
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RCRsmart... good for you and am glad things worked out. Now many more happy miles before another coolant change is due.

cheers...
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#27 (permalink) Old 10-16-2013, 03:03 PM
 
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What size was the block bolt?




Quote:
Originally Posted by RCRsmart View Post
Wanted to say thank you for this guide!

I had the front of the car jacked up about 12" and the burping method worked great!

Just peformed a coolant flush and fill today. The burping method, by removing the hose attached to the cylinder block helped a ton!

A couple of notes:

I WAS able to retain the original clip on the radiator hose, it did not bend nor break.

I used a wet vac to pull any latent / left over coolant out of the system.

I used the burp method that requires you to pull the hose off the cylinder head and this ensured that I had no latent / left over air bubbles in the system.
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#28 (permalink) Old 10-16-2013, 04:27 PM
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Quote:
Originally Posted by toecutter View Post
What size was the block bolt?
I believe it's an 6 or 8mm allen... it's not a bolt.

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#29 (permalink) Old 10-16-2013, 05:29 PM
 
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Did you use a standard L shaped allen wrench or was it a rachet attachment?
Whats that black plastic piece to the left connect to?
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#30 (permalink) Old 10-17-2013, 12:53 PM
 
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Quote:
Originally Posted by toecutter View Post
What size was the block bolt?
Sorry for my tardiness; was away! It's a 6 mm allen key that is connected to an extender then rachetet.

Plastic piece on left is attached to the engine block coolant sensor(ECT)!?

cheers...
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