Engine cooling system - Revision history

Pokseva: refactored sections

2025-07-12T21:14:57Z

refactored sections

← Older revision		Revision as of 21:14, 12 July 2025
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	Make sure that the anti-corrosion / antifreeze agents are mixed as a concentrate (MB sheets 325.x) with suitable water in accordance with the specifications of MB sheet 310.1 before use in the cooling circuit. Corrosion / antifreeze agents as a ready-made mixture (MB sheets 326.x) must not be mixed with water for use.		Make sure that the anti-corrosion / antifreeze agents are mixed as a concentrate (MB sheets 325.x) with suitable water in accordance with the specifications of MB sheet 310.1 before use in the cooling circuit. Corrosion / antifreeze agents as a ready-made mixture (MB sheets 326.x) must not be mixed with water for use.

	===DIY Basic Coolant Change ===		== DIY guides ==
			===DIY - Basic Coolant Change ===
	This is the basic DIY Coolant Change Technique for Flushing and Refill:		This is the basic DIY Coolant Change Technique for Flushing and Refill:
	* ONLY open the system with engine temperature less than 90C, and do it SLOWLY.		* ONLY open the system with engine temperature less than 90C, and do it SLOWLY.
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	http://www.benzworld.org/forums/w140-s-class/1444114-photo-diy-coolant-service-la-vacuum.html		http://www.benzworld.org/forums/w140-s-class/1444114-photo-diy-coolant-service-la-vacuum.html

	===Temperature Sensors===		==Temperature Sensors==

	TBA		TBA

Pokseva: /* DIY Basic Coolant Change - M113 Engine Cooling System */

2025-07-12T21:14:12Z

DIY Basic Coolant Change - M113 Engine Cooling System

← Older revision		Revision as of 21:14, 12 July 2025
Line 65:		Line 65:
	Make sure that the anti-corrosion / antifreeze agents are mixed as a concentrate (MB sheets 325.x) with suitable water in accordance with the specifications of MB sheet 310.1 before use in the cooling circuit. Corrosion / antifreeze agents as a ready-made mixture (MB sheets 326.x) must not be mixed with water for use.		Make sure that the anti-corrosion / antifreeze agents are mixed as a concentrate (MB sheets 325.x) with suitable water in accordance with the specifications of MB sheet 310.1 before use in the cooling circuit. Corrosion / antifreeze agents as a ready-made mixture (MB sheets 326.x) must not be mixed with water for use.

	==DIY Basic Coolant Change ~~- M113 Engine Cooling System~~==		===DIY Basic Coolant Change ===
	This is the basic DIY Coolant Change Technique for Flushing and Refill:		This is the basic DIY Coolant Change Technique for Flushing and Refill:
	* ONLY open the system with engine temperature less than 90C, and do it SLOWLY.		* ONLY open the system with engine temperature less than 90C, and do it SLOWLY.
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	* Note if you do a "complete" coolant change every 2 - 3 years, there is probably no need to do the several rain water and distilled water flushes.		* Note if you do a "complete" coolant change every 2 - 3 years, there is probably no need to do the several rain water and distilled water flushes.

	===DIY Radiator Coolant and Pressure Test ~~- M113 Engine Cooling System~~===		{\|
			\|{{#ev:youtube\|https://www.youtube.com/watch?v=5nO-7y1yG9M\|320\|center\|Complete Coolant Flush (By Masood)\|frame}}
			\|}

			===DIY - Replace Coolant Pump===

			{\|
			\|{{#ev:youtube\|https://www.youtube.com/watch?v=fSfg5fpCiSk\|320\|center\|Coolant Pump Replacement (By Masood)\|frame}}
			\|}

			===DIY - Replace Coolant Tank===

			{\|
			\|{{#ev:youtube\|https://www.youtube.com/watch?v=B9vJUShMfTM\|320\|center\|Coolant Tank Replacement (By Masood)\|frame}}
			\|}

			===DIY - Radiator Coolant and Pressure Test===
	This is the thorough DIY Coolant Change Technique for Flushing and Refill:		This is the thorough DIY Coolant Change Technique for Flushing and Refill:

	http://www.benzworld.org/forums/w140-s-class/1444114-photo-diy-coolant-service-la-vacuum.html		http://www.benzworld.org/forums/w140-s-class/1444114-photo-diy-coolant-service-la-vacuum.html

	===Temperature Sensors ~~- M113 Engine Cooling System~~===		===Temperature Sensors===

	TBA		TBA

Pokseva: /* Coolant Diagram - M113 Engine Cooling System */

2025-07-04T16:57:31Z

Coolant Diagram - M113 Engine Cooling System

@@ Line 2: / Line 2: @@
 ==M113 Engine Cooling System==
-===Coolant Diagram - M113 Engine Cooling System===
+===Coolant Diagram ===
-[[File:W220_M113_Diagram_of_Coolant_Circuit.JPG|600px|center]]
 ===Issues - M113 Engine Cooling System===

Pokseva: Pokseva moved page WIS 20.00 General to Engine cooling system

2025-07-04T16:49:08Z

Pokseva moved page WIS 20.00 General to Engine cooling system

← Older revision	Revision as of 16:49, 4 July 2025
(No difference)

Pokseva: /* Coolant */ described different specs and their capability

2024-02-27T12:14:26Z

Coolant: described different specs and their capability

← Older revision		Revision as of 12:14, 27 February 2024
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	==Coolant ==		==Coolant ==
	* Cooling System Capacity is 11.2L.		The capacity of the cooling system is 11.2L.

	There are 3 types of MB approved anti freeze liquids:		There are 3 types of MB approved anti freeze liquids:
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	* BQ1030005 (G40) pink (MB 325.6 spec)		* BQ1030005 (G40) pink (MB 325.6 spec)

	[[File:MB_325.0_coolant.jpg\|thumb\|none\|OE MB 325.0 coolant]]		{\|
	[[File:XSTREAM_G48_coolant.jpg\|thumb\|none\|MB-approved MB 325.0 coolant ~~XTREAM G48~~]]		\|[[File:MB_325.0_coolant.jpg\|thumb\|none\|OE MB 325.0 coolant]]
			\|[[File:XSTREAM_G48_coolant.jpg\|thumb\|none\|XTREAM G48 (MB-approved MB 325.0 coolant)]]
			\|}

	The yellow coolant (G05) was the original coolant that Mercedes used ~20 years ago.		The yellow coolant (G05) was the original coolant that Mercedes used ~20 years ago.
	Today, Mercedes recommends to use the blue coolant according to spec MB 325.0 (G48) in MB passenger vehicles up to and including the year of manufacture April 2014.
			Today, Mercedes recommends to use the blue coolant according to spec '''MB 325.0 ''' (G48) in MB passenger vehicles up to and including the year of manufacture April 2014.

	The yellow (G05) and blue (G48) coolants are compatible - both are GOAT type formulas. However, the yellow coolant hasn't been used for at least ten years now.		The yellow (G05) and blue (G48) coolants are compatible - both are GOAT type formulas. However, the yellow coolant hasn't been used for at least ten years now.

	The pink coolant is the latest G40 spec, Borate-free Si-OAT type formula that ~~you~~ can ~~use~~ in the older engines but only after all of the old (yellow/blue) coolant has been thoroughly flushed out of the system (they have different chemistries that are not compatible and if mixed will cause damage in pretty short order).		The pink coolant is the latest '''MB 325.6''' (G40) spec (Borate-free Si-OAT type formula) that can be used in the older engines, but only after all of the old (yellow/blue) coolant has been thoroughly flushed out of the system (they have different chemistries that are not compatible and if mixed will cause damage in pretty short order).

	~~'''M~~-~~B Article on Engine Coolant BQ 1 03 0005 (G48)'''~~		Mercedes maintains a list of coolants that are approved by MB and confirm to [https://operatingfluids.mercedes-benz.com/sheet/325.0\| MB 325.0] and [https://operatingfluids.mercedes-benz.com/sheet/325.6\| MB 325.6] specifications.
	~~The yellow coolant (G05) was the original coolant that Mercedes used ~20 years ago~~.
	~~Today, Mercedes recommends to use the blue coolant according to spec~~ MB 325.0 ~~(G48) in MB passenger vehicles up to~~ and ~~including the year of manufacture April 2014~~.		=== Mixing coolant with water ===
	~~The yellow (G05) and blue (G48) coolants are compatible~~ - ~~both are GOAT type formulas~~. ~~However, the yellow~~ coolant ~~hasn't been used for at least ten years now.~~

	~~The pink coolant is~~ the ~~latest G40 spec, Borate~~-~~free Si-OAT type formula that you can use~~ in the ~~older engines but only after all~~ of the ~~old~~ (~~yellow/blue~~) ~~coolant has been thoroughly flushed out of the system (they have different chemistries that are~~ not ~~compatible and if~~ mixed ~~will cause damage in pretty short order).~~		Make sure that the anti-corrosion / antifreeze agents are mixed as a concentrate (MB sheets 325.x) with suitable water in accordance with the specifications of MB sheet 310.1 before use in the cooling circuit. Corrosion / antifreeze agents as a ready-made mixture (MB sheets 326.x) must not be mixed with water for use.
	~~http://www.benzworld.org/forums/w211-e-class/2209257-rust-~~water~~-pump-hint-failure-coolant~~.~~html?utm_medium=email&utm_source=201#post10680497~~

	==DIY Basic Coolant Change - M113 Engine Cooling System==		==DIY Basic Coolant Change - M113 Engine Cooling System==

Pokseva at 12:04, 27 February 2024

2024-02-27T12:04:03Z

← Older revision		Revision as of 12:04, 27 February 2024
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	* For other issues such as leaking hoses and pipes see [[WIS 20.20 Radiator, Coolant Hoses]].		* For other issues such as leaking hoses and pipes see [[WIS 20.20 Radiator, Coolant Hoses]].

	==~~=Parts - M113 Engine Cooling System=~~==		==Coolant ==
	* Cooling System Capacity is 11.2L.		* Cooling System Capacity is 11.2L.

	~~'''Part Number Coolant Anti Freeze Types'''~~		There are 3 types of MB approved anti freeze liquids:
	* ~~BQ 1 03 0002~~ (G05) yellow ~~M-B Sheet TBD~~		* BQ1030002 (G05) yellow (MB 325.1 spec)
	* ~~BQ 1 03 0004~~ (G48) dark blue/green ~~M-B Sheet TBD~~		* BQ1030004 (G48) dark blue/green (MB 325.0 spec)
	* ~~BQ 1 03 0005~~ (~~G??~~) pink ~~M-B Sheet~~ 325.5		* BQ1030005 (G40) pink (MB 325.6 spec)

	[[File:~~MB_Coolant_BQ_1_03_0005_%28G48%29~~.~~JPG~~\|~~200px~~\|~~center~~]]		[[File:MB_325.0_coolant.jpg\|thumb\|none\|OE MB 325.0 coolant]]
			[[File:XSTREAM_G48_coolant.jpg\|thumb\|none\|MB-approved MB 325.0 coolant XTREAM G48]]

			The yellow coolant (G05) was the original coolant that Mercedes used ~20 years ago.
			Today, Mercedes recommends to use the blue coolant according to spec MB 325.0 (G48) in MB passenger vehicles up to and including the year of manufacture April 2014.
			The yellow (G05) and blue (G48) coolants are compatible - both are GOAT type formulas. However, the yellow coolant hasn't been used for at least ten years now.

			The pink coolant is the latest G40 spec, Borate-free Si-OAT type formula that you can use in the older engines but only after all of the old (yellow/blue) coolant has been thoroughly flushed out of the system (they have different chemistries that are not compatible and if mixed will cause damage in pretty short order).

	'''M-B Article on Engine Coolant BQ 1 03 0005 (G48)'''		'''M-B Article on Engine Coolant BQ 1 03 0005 (G48)'''
			The yellow coolant (G05) was the original coolant that Mercedes used ~20 years ago.
			Today, Mercedes recommends to use the blue coolant according to spec MB 325.0 (G48) in MB passenger vehicles up to and including the year of manufacture April 2014.
			The yellow (G05) and blue (G48) coolants are compatible - both are GOAT type formulas. However, the yellow coolant hasn't been used for at least ten years now.

			The pink coolant is the latest G40 spec, Borate-free Si-OAT type formula that you can use in the older engines but only after all of the old (yellow/blue) coolant has been thoroughly flushed out of the system (they have different chemistries that are not compatible and if mixed will cause damage in pretty short order).
	http://www.benzworld.org/forums/w211-e-class/2209257-rust-water-pump-hint-failure-coolant.html?utm_medium=email&utm_source=201#post10680497		http://www.benzworld.org/forums/w211-e-class/2209257-rust-water-pump-hint-failure-coolant.html?utm_medium=email&utm_source=201#post10680497

	===DIY Basic Coolant Change - M113 Engine Cooling System===		==DIY Basic Coolant Change - M113 Engine Cooling System==
	This is the basic DIY Coolant Change Technique for Flushing and Refill:		This is the basic DIY Coolant Change Technique for Flushing and Refill:
	* ONLY open the system with engine temperature less than 90C, and do it SLOWLY.		* ONLY open the system with engine temperature less than 90C, and do it SLOWLY.

Ricebubbles: Added link Back to Index

2016-03-28T05:07:19Z

Added link Back to Index

← Older revision		Revision as of 05:07, 28 March 2016
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			Back to '''[[Index]]'''

	==M113 Engine Cooling System==		==M113 Engine Cooling System==
	===Coolant Diagram - M113 Engine Cooling System===		===Coolant Diagram - M113 Engine Cooling System===

Ricebubbles: /* Issues - M113 Engine Cooling System */ Added link to WIS 20.20 Radiator, Coolant Hoses

2016-02-10T01:24:19Z

Issues - M113 Engine Cooling System: Added link to WIS 20.20 Radiator, Coolant Hoses

← Older revision		Revision as of 01:24, 10 February 2016
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	* OEM Coolant is supposedly good for 250,000Km or 15 Years.		* OEM Coolant is supposedly good for 250,000Km or 15 Years.
	* M-B DIY enthusiasts typically change the coolant every 3 - 5 years.		* M-B DIY enthusiasts typically change the coolant every 3 - 5 years.
			* For other issues such as leaking hoses and pipes see [[WIS 20.20 Radiator, Coolant Hoses]].

	===Parts - M113 Engine Cooling System===		===Parts - M113 Engine Cooling System===

Ricebubbles: /* DIY Radiator Coolant and Pressure Test - M113 Engine Cooling System */

2015-11-17T03:55:33Z

DIY Radiator Coolant and Pressure Test - M113 Engine Cooling System

← Older revision		Revision as of 03:55, 17 November 2015
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	===DIY Radiator Coolant and Pressure Test - M113 Engine Cooling System===		===DIY Radiator Coolant and Pressure Test - M113 Engine Cooling System===
			This is the thorough DIY Coolant Change Technique for Flushing and Refill:

	http://www.benzworld.org/forums/w140-s-class/1444114-photo-diy-coolant-service-la-vacuum.html		http://www.benzworld.org/forums/w140-s-class/1444114-photo-diy-coolant-service-la-vacuum.html

Ricebubbles at 11:09, 17 March 2015

2015-03-17T11:09:40Z

← Older revision		Revision as of 11:09, 17 March 2015
Line 42:		Line 42:

	http://www.benzworld.org/forums/w140-s-class/1444114-photo-diy-coolant-service-la-vacuum.html		http://www.benzworld.org/forums/w140-s-class/1444114-photo-diy-coolant-service-la-vacuum.html

			===Temperature Sensors - M113 Engine Cooling System===

			TBA

			Here are some typical M-B thermistor resistance values made at a given temperature. The tests were conducted on a W204 2008 C220 but are representative of all M-B Thermistors.
			* Temperature sensor near the water pump (A311 01:09) with a green dot at 18°C it had a resistance of 2.36K Ohms. When warmed slightly with a heat gun the resistance dropped to 1.48K Ohms.
			* Temperature sensor in the thermostat housing (B11/4) at 18°C B11/4 had a resistance of 2.81K Ohms. When warmed slightly with a heat gun the resistance of B11/4 dropped to 1.15K Ohms.