Radiator - Revision history

Pokseva: /* Transmission cooling hoses */ Rusted transmission cooler supply hose

2025-08-21T13:00:27Z

Transmission cooling hoses: Rusted transmission cooler supply hose

@@ Line 149: / Line 149: @@
 |[[File:W220_radiator_broken_transmission_cooler_connector.jpg|thumb|none|Broken transmission cooler port on radiator]]
 [[File:W220_extracting_radiator_remains_from_hose_connector.jpg|thumb|none|Radiator port remnants extracted from hose fitting]]
 |}

Pokseva: Rusted coolant hose c-clip

2025-08-21T12:26:25Z

Rusted coolant hose c-clip

Show changes

Pokseva: radiator square nuts

2025-08-21T11:58:46Z

radiator square nuts

@@ Line 1: / Line 1: @@
 ==Radiator==
@@ Line 8: / Line 6: @@
 [[File:W220_radiator_A2205002403_MAHLE_CR304000S.jpg|thumb|none|MAHLE CR304000S radiator]]
 === Remove/install radiator ===
@@ Line 34: / Line 70: @@
 * 7 - Connection of coolant line (radiator coolant pump)
 * 8 - Retaining nuts for condenser
-* 9 - Fan shroud
+* 9 - [[Engine fan]] shroud
 * 10 - Connection for coolant line (radiator expansion reservoir)
 |}
@@ Line 41: / Line 77: @@
 # Remove lower engine compartment paneling
 # Drain coolant at radiator (1). Open radiator drain plug (3).
-# Disconnect automatic oil lines at connection (5, 6) at radiator (1). Seal off oil lines.
+# Disconnect automatic transmission oil lines at connection (5, 6) at radiator (1). Seal off oil lines.
 # Disconnect coolant line (radiator-thermostat housing) (2) at radiator (1)
 # Disconnect connection of coolant line (radiator-coolant pump) (7), connection of coolant line (radiator-expansion reservoir) (10) at radiator (1)
-# Remove fan shroud (9)
+# Remove [[engine fan]] shroud (9)
-# Detach condenser at nuts (8) at radiator. Detach AC line at radiator (arrow).
+# Detach condenser at nuts (8) at radiator
-# Detach bracket of radiator (4).
+# Detach AC line at nut (arrow) at radiator
 # Take out radiator (1). Installation: the studs on the radiator must be located at the bottom in the rubber mounts on the crossmember.
 # Install in the reverse order

Pokseva: Pokseva moved page Radiator Coolant Hoses to Radiator: shortened url

2025-08-21T10:35:29Z

Pokseva moved page Radiator Coolant Hoses to Radiator: shortened url

← Older revision	Revision as of 10:35, 21 August 2025
(No difference)

Pokseva: /* Transmission cooling hoses */ distinction between 5-speed and 7-speed transmissions

2025-07-22T13:24:30Z

Transmission cooling hoses: distinction between 5-speed and 7-speed transmissions

← Older revision		Revision as of 13:24, 22 July 2025
Line 78:		Line 78:

	\|[[File:W220_transmission-oil-cooler-return-hose-A0249978182.jpg\|200px]]		\|[[File:W220_transmission-oil-cooler-return-hose-A0249978182.jpg\|200px]]
	\|Transmission oil cooler return hose (bottom). From engine junction to oil cooler.		\|Transmission oil cooler return hose (bottom). From engine junction to oil cooler. (Used on 5-speed transmission only.)
			\|-
			\|40
			\|A2202700196
			\|[[File:W220_line_from_engine_junction_to_transmission_A2202700196.jpg\|200px]]
			\|Transmission oil cooler return hose (bottom). From engine junction to transmission. (Used on 5-speed transmission only.)
			\|-
			\|40
			\|A2202704096
			\|[[File:W220_return_line_from_transmission_to_oil_cooler_A2202704096.jpg\|200px]]
			\|Transmission oil cooler return hose (bottom). From oil cooler to transmission. (Used on 7-speed transmission only.)
	\|-		\|-
	\|910		\|910
	\|A2202700696 (155 EUR)		\|A2202700696 (155 EUR)
	\|[[File:W220_transmission-oil-cooler-supply-hose-A2202700696.jpg\|200px]]		\|[[File:W220_transmission-oil-cooler-supply-hose-A2202700696.jpg\|200px]]
	\|Transmission oil cooler supply hose (top).		\|Transmission oil cooler supply hose (top). (Used on both 5-speed and 7-speed transmissions.)
	\|}		\|}

Pokseva: /* Transmission cooling hoses */

2025-07-16T14:28:58Z

Transmission cooling hoses

← Older revision		Revision as of 14:28, 16 July 2025
Line 59:		Line 59:

	[[File:W220_radiator_transmission_cooling_pipes.png\|500px]]		[[File:W220_radiator_transmission_cooling_pipes.png\|500px]]

			The radiator includes a built-in transmission fluid chamber, which is used to cool the hot transmission fluid coming from the automatic transmission. The upper port on the radiator serves as the supply line (hot fluid in), while the lower port functions as the return line, sending the cooled fluid back to the transmission.

	{\| class="wikitable"		{\| class="wikitable"

Pokseva: /* Broken transmission cooler hose at radiator */

2025-07-16T14:24:51Z

Broken transmission cooler hose at radiator

← Older revision		Revision as of 14:24, 16 July 2025
Line 85:		Line 85:


	=== Broken ===		=== Broken transmission cooler hose at radiator ===

	~~[[File:W220_extracting_radiator_remains_from_hose_connector~~.~~jpg\|300px]]~~		The aluminum connections on a car radiator that serve as ports for the transmission fluid cooler often oxidize and become fragile over time due to a combination of chemical, environmental, and mechanical factors.
	~~[[File:W220_radiator_broken_transmission_cooler_connector.jpg\|300px]]~~

			It’s not uncommon for the transmission cooler port on a radiator to weaken and break off over time, either on its own or during an attempt to remove the cooler line fitting.
			When this happens, it can lead to a significant transmission fluid leak. If the hexagonal fitting (the radiator port nut) breaks off (as shown in the image below ) the internal transmission cooler (sometimes referred to as the "transmission fluid chamber" or "cooler tube") can become loose.
			This may result in coolant leaking from the area between the transmission cooler tube and the main body (or tank) of the radiator.

			To remove the oxidized remnants of the radiator port from the transmission cooler hose fitting, position the flat side of the fitting nut against a vise. Gently tap the top edge of the nut with a hammer, rotating the nut gradually and repeating the process around its entire circumference. This helps break down the corroded aluminum residue. Once the aluminum has been loosened sufficiently, you should be able to extract the broken port using pliers.

			{\|
			\|[[File:W220_transmission_cooler_connector_broken_on_radiator.jpg\|thumb\|none\|Hose fitting broken off at radiator]]
			\|[[File:W220_radiator_broken_transmission_cooler_connector.jpg\|thumb\|none\|Broken transmission cooler port on radiator]]
			[[File:W220_extracting_radiator_remains_from_hose_connector.jpg\|thumb\|none\|Radiator port remnants extracted from hose fitting]]
			\|}

	== Coolant Hoses ==		== Coolant Hoses ==

Pokseva: radiator section updated

2025-07-16T12:25:29Z

radiator section updated

@@ Line 1: / Line 1: @@
 Back to '''[[Index]]'''
-==Description - Radiator==
+==Radiator==
 === Remove/install radiator ===
@@ Line 50: / Line 56: @@
 |}
-==Description - Coolant Hoses==
+== Transmission cooling hoses ==
 These are the Coolant Hoses including the Hot Water lines in a W220 M113 engine.
-[[File:S500 Hot Water Lines.JPG|500px|center]]
+[[File:S500 Hot Water Lines.JPG|500px]]
-==Part Numbers - Coolant Hoses==
+===Part Numbers===
 * #10 A2208321794 or A 220 832 17 94 Hose from engine to connecting tube.
 * #20 A2208320015 or A 220 832 00 15 Pipeline: feed thru partition panel with option 875 (heated screen washing system).
@@ Line 65: / Line 106: @@
 * #170 A2208320994 or A 220 832 09 94 Hose feed pane washer water heating with option 582+875 (air conditioning in the rear, heated screen washing system).
-==Issues - Radiator==
+=== Issue - Leak in Pipeline feed thru partition panel===
 A common fault with the Hot Water Lines is a slight coolant leak caused by a small crack in the #20 or #25 Pipeline: feed thru partition panel, depending on options fitted.

Pokseva: Pokseva moved page WIS 20.20 Radiator, Coolant Hoses to Radiator Coolant Hoses: making URL more friendly

2025-07-16T11:50:52Z

Pokseva moved page WIS 20.20 Radiator, Coolant Hoses to Radiator Coolant Hoses: making URL more friendly

← Older revision	Revision as of 11:50, 16 July 2025
(No difference)

Pokseva: /* Remove/install radiator */ youtube video added

2025-07-12T16:46:58Z

Remove/install radiator: youtube video added

← Older revision		Revision as of 16:46, 12 July 2025
Line 45:		Line 45:
	# Pour in coolant		# Pour in coolant
	# Inspect cooling system for leaks		# Inspect cooling system for leaks

			{\|
			\|{{#ev:youtube\|https://www.youtube.com/watch?v=3gYMXxspheU\|320\|center\|W220 Mercedes Radiator Removal\|frame}}
			\|}

	==Description - Coolant Hoses==		==Description - Coolant Hoses==