Checking Check Valve - AR43.10-P-0023MFA

Model 118, 177, 247 

Shown on model 177 except code ME08 (hybrid drive 75-84 KW VARIANT (INCLUDING PLUGIN)) 

Fig 1: Check Valve Components Location - Model 247 (Shown On Model 177 Except Code ME08)

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	Risk of death  when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)	Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. Model 177, 247 with engine 282 with code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))	AS00.00-Z-0035-01A
	Risk of injury.  Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
Topical note	General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system	Model 177, 247 with engine 282 with code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))	AH00.00-Z-0300-01A
Topical note	Notes on repairs to brake system		AH42.00-P-0003-01A
	Remove/install
1.1	Remove heat shield for firewall.	Model 118 with engine 282 Model 118, 177, 247 with engine 139 Model 118, 177, 247 with engine 260 Model 118, 177, 247 with engine 608 Model 118, 177, 247 with engine 654 Model 177, 247 with engine 282 except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))
		Model 118, 177, 247 with engine 139	AR49.10-P-0001MFG
		Model 118, 177, 247 with engine 654	AR49.10-P-0001MFF
		Model 118, 177, 247 with engine 608	AR49.10-P-0001MFE
		Model 118 with engine 282 Model 177, 247 with engine 282 except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))	AR49.10-P-0001MFD
		Model 118, 177, 247 with engine 260	AR49.10-P-0001MFC
1.2	Remove holders for power electronics.	Model 177, 247 with engine 282 with code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))
			AR08.00-P-0005MFH
2	Detach vacuum line with check valve (1) from brake booster (4).	Check seal (2) for damage. Ensure that the seal (2) is seated correctly. If the seal (2) is found to be damaged, ↓ install a new seal (2).
3	Check vacuum line with check valve (1).	Model 118, 177, 247
			AR43.10-P-0024-01V
		Model 118.### 1# with engine 139 Model 118.### 1# with engine 260 Model 118.### 1# with engine 282 except code 950 (AMG Sports package) except code U29 (Brake system with larger brake disks on the front axle) Model 118.### 1# with engine 282 with code 950 (AMG Sports package) Model 118.### 1# with engine 282 with code U29 (Brake system with larger brake disks on the front axle) Model 118.### 1# with engine 608 except code 950 (AMG Sports package) except code U29 (Brake system with larger brake disks on the front axle) Model 118.### 1# with engine 608 with code 950 (AMG Sports package) Model 118.### 1# with engine 608 with code U29 (Brake system with larger brake disks on the front axle) Model 118.### 1# with engine 654 except code 950 (AMG Sports package) except code U29 (Brake system with larger brake disks on the front axle) Model 118.### 1# with engine 654 with code 950 (AMG Sports package) Model 118.### 1# with engine 654 with code U29 (Brake system with larger brake disks on the front axle) Model 118.### 2# Check valve/pressure in vacuum system of brake booster	*BE43.10-P-1006-01J
		Model 177 with engine 282 with code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN)) Model 177.### 1# with engine 139, 260 Model 177.### 1# with engine 282 except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN)) Model 177.### 1# with engine 608 Model 177.### 1# with engine 654 with code 411 (6-speed manual transmission) with code B01 (48V technology) Model 177.### 1# with engine 654 with code 950 (AMG Sports package) with code U29 (Brake system with larger brake disks on the front axle) Model 177.### 1# with engine 654 with code B01 (48V technology) except code 411 (6-speed manual transmission) Model 177.### 1# with engine 654 with code M013 (Derated engine) except code 950 (AMG Sports package) except code U29 (Brake system with larger brake disks on the front axle) Model 177.### 2# with engine 139, 654 Model 177.### 2# with engine 260, 608 Model 177.### 2# with engine 282 except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN)) Check valve/pressure in vacuum system of brake booster	*BE43.10-P-1006-01H
		Model 247.### 1# with engine 260 Model 247.### 1# with engine 282 except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN)) Model 247.### 1# with engine 282 with code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN)) Model 247.### 1# with engine 608 Model 247.### 2# Model 247.0## 1# with engine 654 except code U29 (18-inch brake system) Model 247.0## 1# with engine 654 with code U29 (18-inch brake system) Model 247.6## 1# with engine 654Check valve/pressure in vacuum system of brake booster	*BE43.10-P-1006-01I
		Test connection	Fig 3
		Vacuum tester If a problem occurs, ↓ Install new vacuum line with check valve (1).	Fig 2
4	Install in the reverse order.

Fig 2: Identifying Vacuum Tester (201 589 13 21 00)

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Fig 3: Identifying Test Connection (168 589 08 63 00)

Courtesy of MERCEDES-BENZ USA