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Home >> Mercedes Benz >> 2000 >> ML430 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Interior/Exterior Trim >> Detachable Body Components -- 163 Chassis >> Retrofitting & Conversion >> Retrofit underride protection - AN88.30-P-0003A

Retrofit underride protection - AN88.30-P-0003A

MODEL 163.113 /128 /136 /154 /157 /172 /175 

except CODE (U49) Styling package 

except CODE (220a) Parktronic System (PTS) 

Survey of components 

Fig 1: Identifying Underride Guard Front & Rear Sections, Brackets & Fasteners
G04609165
Fig 2: Identifying Nuts, Brush Guard Mount
G04609166
Fig 3: Identifying Rivet Nut And Auxiliary Frame
G04609167
Fig 4: Identifying Longitudinal Frame Member, Brackets & Fasteners
G04609168
Fig 5: Identifying Underride Guard Front & Rear Sections & Fasteners
G04609169
REMOVING Remove    
DANGER Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between the columns of the hydraulic hoist and position the four support plates below the hoist support points specified by the vehicle manufacturer. AS00.00-Z-0010-01A
1 Lift vehicle on lifting platform.  
REFER TO TESTING & REPAIR Lift/jack up vehicle AR00.60-P-1000GH
2 Remove brush guard    
REFER TO TESTING & REPAIR Remove brush guard IMPORTANT Up to VIN A289564, X754619. AR88.30-P-2000-01GH 
REFER TO TESTING & REPAIR Remove brush guard IMPORTANT As of VIN A289565, X754620. AR88.30-P-2000-01GI 
3 Unscrew nuts for brush guard bracket (20) on both sides    
4.1 Remove noise encapsulation IMPORTANT Only model 163.113/128.  
REFER TO TESTING & REPAIR Remove/install noise encapsulation AR94.30-P-5400GH
4.2 Detach lower engine compartment paneling IMPORTANT Only model 163.157/172/174/175.  
REFER TO TESTING & REPAIR Remove/install bottom engine compartment paneling AR61.20-P-1105GH
INSTALLING Install     
5.1 Remove frame longitudinal member IMPORTANT Only on vehicles up to VIN A145272, X708318. AN31.30-P-0001-01A
6 Rivet rivet nuts (18) into auxiliary frame (21) TORQUE SPECIFICATION *WH58.30-Z-1004-29A 
7 Install underride guard front section to brush guard   AN88.30-P-0003-01A 
TORQUE SPECIFICATION *BA88.30-P-1011-01A 
8 Slide retaining bracket (3) over frame longitudinal member (27) IMPORTANT Position retaining bracket in center in relation to oblong holes on bottom of frame longitudinal member. Position long leg of retaining bracket on inside of frame longitudinal member.  
9 Slide mounting plate (4, 5) over retaining bracket (3) from bottom, align and fasten with M10 nuts (6) and washers ø 20X10,5X2 (7) TORQUE SPECIFICATION *BA88.30-P-1012-01A 
10.1 Install noise encapsulation IMPORTANT Model 210.0/2.  
REFER TO TESTING & REPAIR Remove/install noise encapsulation AR94.30-P-5400GH
10.2 Install bottom engine compartment covering IMPORTANT Only model 163.157/172/174/175.  
REFER TO TESTING & REPAIR Remove/install bottom engine compartment paneling   AR61.20-P-1105GH
11 Fasten bracket (8, 9) to mounting plate (4, 5) with M10 nuts (6) and washers ø 20X10,5X2 (7) IMPORTANT Right mount is marked with "RH  ", left mount with "LH  "
TORQUE SPECIFICATION
*BA88.30-P-1013-01A 
12 Hook support (10, 11) into threaded bolt of bracket (8, 9) and into threaded bolt for brush guard bracket (25) IMPORTANT Right support is marked with "RH  ", left support with "LH  "  
13 Fasten support (10, 11) to threaded bolt for brush guard bracket on both vehicle sides with M10 nuts (6) and washers ø 30X10,5X2,5 (14) IMPORTANT Do not yet tighten nuts.  
14 Fasten rear section of underride guard (2) with bolts M6X16 (16) and washers ø 17X6,4X4 (17) to auxiliary frame (21) IMPORTANT Do not yet tighten bolts.  
15 Install brush guard    
16 First hook rear section of underride guard (2), then front section of underride guard (1) into threaded bolt of bracket (8, 9) and fasten with M10 nuts (6) and washers ø 30X10,5X2,5 (14) IMPORTANT Do not yet tighten nuts.  
17 Install front section of underride guard (1) to rear section of underride guard (2) with bolts M10X25 (15) and washers ø 30X10,5X2,5 (14) IMPORTANT Do not yet tighten bolts.  
18 Align front section of underride guard (1) to rear section of underride guard (2) to one another and tighten all bolts/nuts. TORQUE SPECIFICATION *BA88.30-P-1001-01A 
TORQUE SPECIFICATION *BA88.30-P-1015-01A 
TORQUE SPECIFICATION *BA88.30-P-1016-01A 
TORQUE SPECIFICATION *BA88.30-P-1014-01A 
TORQUE SPECIFICATION Detachable body components, underride guard

Number Designation Model 163 up to 31.8.01 Model 163 as of 1.9.01
BA88.30-P-1001-01A Nut/bolt, brush guard bracket to cross member Nm 49 49
BA88.30-P-1011-01A Bolt, underride guard to brush guard Nm 25 25
BA88.30-P-1012-01A Retaining bracket to underride guard mounting plate Nm 25 25
BA88.30-P-1013-01A Bracket, underride guard to mounting plate Nm 49 49
BA88.30-P-1014-01A Bolt, rear section of underride guard to auxiliary frame Nm 10 10
BA88.30-P-1015-01A Nut, underride guard to bracket Nm 49 49
BA88.30-P-1016-01A Bolt, front section of underride guard to rear section of underride guard Nm 49 49
Commercially available tools

Number Designation
WH58.30-Z-1004-29A Riveting nut pliers
Parts ordering notes

Part no. Designation Quantity
B6 688 0521 Underride guard, stainless steel, ECE up to VIN A289564, X754619 1
B6 688 0524 Underride guard, stainless steel, USA and Canada up to VIN A289564, X754619 1
B6 688 0525 Underride guard, black, USA and Canada up to VIN A289564, X754619 1
B6 688 0528 Underride guard, stainless steel, ECE as of VIN A289565, X754620 1
B6 688 0529 Underride guard, stainless steel, USA and Canada as of VIN A289565, X754620 1
B6 688 0530 Underride guard, black, USA and Canada as of VIN A289565, X754620 1