curt 11376 User manual

PERIODICALLY CHECK THIS RECEIVER HITCH TO ENSURE ALL FASTENERS ARE TIGHT AND ALL STRUCTURAL COMPONENTS ARE SOUND
CURT Manufacturing LLC. warrants this product to be free of defects in material and/or workmanship at the time of retail purchase by the original purchaser. If the product is found to be defective, Curt Manufacturing LLC. may repair or replace
the product at their option, when the product is returned, prepaid, with proof of purchase. Alteration to, misuse of, or improper installation of this product voids the warranty. Curt Manufacturing LLC.'s liability is limited to repair or replacement
of products found to be defective, and specifically excludes liability for incidental or consequential loss or damage.
MAKE: STYLE:
120
WARNING: NEVER EXCEED YOUR VEHICLE MANUFACTURER'S RECOMMENDED TOWING CAPACITY
WEIGHT CARRYING:
INSTALLATION TIPS:
INSTALLATION REQUIRES:
VEHICLE PHOTO:
REPRESENTATIVE PHOTO
TRAILER HITCH ILLUSTRATION:
MAKE SURE YOUR HITCH MATCHES
LEVEL OF DIFFICULTY:
CHALLENGING
EASY MODERATE CHALLENGING
1. BEFORE YOU BEGIN INSTALLATION, READ ALL
INSTRUCTIONS THOROUGHLY.
2. TO EASE INSTALLATION, 2 PEOPLE MAY BE
REQUIRED.
3. USING PROPER TOOLS WILL GREATLY IMPROVE
THE QUALITY OF THE INSTALL AND REDUCE THE
TIMEREQUIRED.
Safety glasses should be
worn at all times while
installing this product
.
YEARS: 2014 MERCEDES-BENZ MODEL: SLK250 CONVERTIBLE
1,000
100
TRAILER WEIGHT:
TONGUE WEIGHT:
11376 INSTALLATION INSTRUCTIONS
LBS.
LBS.
MIN.
MIN.
240
IF YOU ARE HESITANT TO UNDERTAKE
THIS TASK ON YOUR OWN, CONTACT AN AUTHORIZED
CURT INSTALLER FOR ADDITIONAL ASSISTANCE.
NOVICE INSTALL TIME:
PRO INSTALL TIME:
RATCHET SOCKET
EXTENSION
6 in.
SOCKET
3/4 in.
10mm
17mm
SCREW
DRIVER TORQUE
WRENCH MASKING
TAPE
SAFETY
GLASSES DIE GRINDER TAPE
MEASURE
PART REMOVAL
DRILLING / HOLE ENLARGEMENT
REQUIRED
FISHWIRE HARDWARE
CLEAN EXISTING WELDNUTS
TEMPORARILY REMOVE TRUNK
CONTENTS, INTERIOR PANEL,
BUMPER COVER
TRIM FOAM BUMPER PAD
AND REAR FASCIA
PANEL REMOVAL
TOOL RECIPROCATING
SAW

INSTALLATION WALKTHROUGH:
Parts List
DESCRIPTIONPART NUMBERQTYITEM
.250" SPACER PLATE11376-SP
21
HEX FLANGE NUTHFN 1213, GR822
CARRIAGE BOLT1/2-13 x 1 3/4, GR8
23
HEX BOLTM10 - 1.5 x 40mm24
CONICAL TOOTHED WASHER3/8"2
5
.250 x 1.25 x 3.00" SQUARE HOLE SPACERCM-SP1926
1/2" FISHWIRE1_2 FISHWIRE2
7
1. Remove trunk contents including the spare tire cover,
spare tire, and spare tire tool kit.
2. Using a flat head scrwdriver, remove three (3) plugs from
bottom of rear interior panel.
36
2
7
4
5
1
DESIGNED FOR USE WITH
# D-21 / 45521 EURO MOUNT OPTION AVAILABLE
# 45571 (1 7/8" BALL) & 45572 (2" BALL)

INSTALLATION WALKTHROUGH:
3. Gently remove rear panel.
4. Using a 10mm socket, remove two (2) underbody screws
connecting rear fascia to underbody panel.
5. Using a 10 mm socket, remove two (2) plastic nuts from
underbody panel (1 per side). Do not remove middle nut.
6. Using a flat head screwdriver, remove three (3) plastic clips
from each wheel well (6 total) connecting the rear fascia.

INSTALLATION WALKTHROUGH:
7. Gently pull corners of rear fascia loose. Using a panel
removal tool, gently detach clips (5 per side) located
below tail lights.
8. Using a 10mm socket, remove center nut from inside of
trunk.
9. Gently remove rear fascia.
10. Detach foam bumper pad from rear of fascia.

INSTALLATION WALKTHROUGH:
11. Detach electrical connections (4 connectors and 1 clip) from
rear fascia.
12. Using a T50 Torx bit, remove two (2) M10 screws
connecting underbody supports to trunk pan.
13. Remove two (2) plastic plugs from rear body panel.
14. Using a die grinder, enlarge two (2) holes where plastic
plugs were removed. Enlarge holes as little as possible
to allow CM-SP19 and carriage bolts to pass through.
(See Hole Enlargement Diagram)
REMOVE PLUGS
1 1/4"Ø

INSTALLATION WALKTHROUGH:
15. Reverse fishwire 1/2" carriage bolts and CM-SP19
spacers into the enlarged holes. Fishwires should
remain attached to preven loss of hardware.
(See Reverse Fishwire Diagram)
16. Thread fishwires through hitch mounting holes and raise
hitch into position and loosely install 1/2" hex flange
nuts onto the carriage bolts.
17. Place CM-11376-SP spacers between forward mounting
plate and underbody supports. Loosely install M10 hex
bolts and 3/8" conical toothed washers into the existing
vehicle weldnuts.
18. Using a 3/4" socket, torque 1/2" hardware to 110 lb-ft. Using
a 17mm socket, torque M10-1.50 hardware to 56 lb-ft.

INSTALLATION WALKTHROUGH:
19. Mark with masking tape and trim with reciprocating saw the
foam bumper pad. (See Foam Bumper Pad Trim Diagram)
20. Mark with masking tape and trim with die grinder the rear
fascia. (See Rear Fascia Trim Diagram)
21. Reassemble rear fascia with foam bumper pad and
reattach electrical connections.
22. Reattach rear fascia in reverse order of removal.
17 1/2 in.
3 1/4 in.
1 in. DEEP
BUMPER PAD
CENTER
3 5/8 in.
1 1/4 in.
REAR FASCIA
CENTER

INSTALLATION WALKTHROUGH:
24. Reattach interior panel in reverse order of removal.
25. Reinstall spare tire kit, spare tire and spare tire cover.
26. Install complete.

GROSS LOAD CAPACITY WHEN USED AS A WEIGHT CARRYING HITCH: LBS. TRAILER WEIGHT & LBS. TONGUE WEIGHT.
***DO NOT EXCEED VEHICLE MANUFACTURER'S RECOMMENDED TOWING CAPACITY.***
WARNING: ALL NON-TRAILER LOADS APPLIED TO THIS PRODUCT MUST BE SUPPORTED BY 18050 STABILIZING STRAPS.
** FAILURE TO PROPERLY SUPPORT NON-TRAILER LOADS WILL VOID PRODUCT WARRANTY**
HITCH WEIGHT: LBS.
INSTALL TIME
PROFESSIONAL: MINUTES
NOVICE (DIY): MINUTES
INSTALL NOTES:
PERIODICALLY CHECK THIS RECEIVER HITCH TO ENSURE THAT ALL FASTENERS
ARE TIGHT AND THAT ALL STRUCTURAL COMPONENTS ARE SOUND.
Curt Manufacturing LLC., warrants this product to be free of defects in material and/or workmanship at the time of retail purchase by the original purchaser. If the product is found to be defective,
Curt Manufacturing LLC., may repair or replace the product, at their option, when the product is returned, prepaid, with proof of purchase. Alteration to, misuse of, or improper installation of
this product voids the warranty. Curt Manufacturing LLC.'s liability is limited to repair or replacement of products found to be defective, and specifically excludes liability for incidental or
consequential loss or damage.
1,000 100
18
120
MERCEDES-BENZ SLK250
11376
240
Parts List DESCRIPTIONPART NUMBERQTYITEM .250" SPACER PLATE11376-SP
21 HEX FLANGE NUTHFN 1213, GR8
22 CARRIAGE BOLT1/2-13 x 1 3/4, GR8
23 HEX BOLTM10 - 1.5 x 40mm24 CONICAL TOOTHED WASHER3/8"2
5.250 x 1.25 x 3.00" SQUARE HOLE SPACERCM-SP1926 1/2" FISHWIRE1_2 FISHWIRE2
7
1 1/4"Ø
- DRILLING REQUIRED
- TRIM FASCIA
- TRIM FOAM INSERT
- TEMP. REMOVE TRUNK CONTENTS
- TEMP. REMOVE FASCIA
- FISHWIRE HARDWARE
TRUNK PAN
REAR BODY PANEL
ENLARGE HOLES
36
2
7
4
5
1
EXISTING BODY SUPPORT
(BOTH SIDES)
EXISTING WELDNUTS
(BOTH SIDES)
DESIGNED FOR USE WITH
# D-21 / 45521
EURO MOUNT OPTION AVAILABLE
# 45571 (1 7/8" BALL) & 45572 (2" BALL)

PERIODICALLY CHECK THIS RECEIVER HITCH TO ENSURE THAT ALL FASTENERS
ARE TIGHT AND THAT ALL STRUCTURAL COMPONENTS ARE SOUND.
Curt Manufacturing LLC., warrants this product to be free of defects in material and/or workmanship at the time of retail purchase by the original purchaser. If the product is found to be defective,
Curt Manufacturing LLC., may repair or replace the product, at their option, when the product is returned, prepaid, with proof of purchase. Alteration to, misuse of, or improper installation of
this product voids the warranty. Curt Manufacturing LLC.'s liability is limited to repair or replacement of products found to be defective, and specifically excludes liability for incidental or
consequential loss or damage.
MERCEDES-BENZ SLK250
11376
TOOLS REQUIRED
RATCHET
6" SOCKET EXTENSION
3/4" SOCKET
10mm SOCKET
17mm SOCKET
FLAT HEAD SCRWDRIVER
TORQUE WRENCH
MASKING TAPE
SAFETY GLASSES
PANEL REMOVAL TOOL
DIE GRINDER
TAPE MEASURE
RECIPROCATING SAW
FOAM BUMPER PAD TRIM DIAGRAM
CUT 1 in. DEEP
17 1/2 in. 3 1/4 in.
REAR FASCIA TRIM DIAGRAM
3 5/8 in.
1 1/4 in.

INSTALLATION STEPS
PERIODICALLY CHECK THIS RECEIVER HITCH TO ENSURE THAT ALL FASTENERS
ARE TIGHT AND THAT ALL STRUCTURAL COMPONENTS ARE SOUND.
Curt Manufacturing LLC., warrants this product to be free of defects in material and/or workmanship at the time of retail purchase by the original purchaser. If the product is found to be defective,
Curt Manufacturing LLC., may repair or replace the product, at their option, when the product is returned, prepaid, with proof of purchase. Alteration to, misuse of, or improper installation of
this product voids the warranty. Curt Manufacturing LLC.'s liability is limited to repair or replacement of products found to be defective, and specifically excludes liability for incidental or
consequential loss or damage.
MERCEDES-BENZ SLK250
11376
1. Remove trunk contents including the spare tire cover, spare tire, and spare tire tool kit.
2. Using a flat head scrwdriver, remove three (3) plugs from bottom of rear interior panel.
3. Gently remove rear panel.
4. Using a 10mm socket, remove two (2) underbody screws connecting rear fascia to underbody panel.
5. Using a 10 mm socket, remove two (2) plastic nuts from underbody panel (1 per side). Do not remove
middle nut.
6. Using a flat head screwdriver, remove three (3) plastic clips from each wheel well (6 total) connecting
the rear fascia.
7. Gently pull corners of rear fascia loose. Using a panel removal tool, gently detach clips (5 per side)
located below tail lights.
8. Using a 10mm socket, remove center nut from inside of trunk.
9. Gently remove rear fascia.
10. Detach foam bumper pad from rear of fascia.
11. Detach electrical connections (4 connectors and 1 clip) from rear fascia.
12. Using a T50 Torx bit, remove two (2) M10 screws connecting underbody supports to trunk pan.
13. Remove two (2) plastic plugs from rear body panel.
14. Using a die grinder, enlarge two (2) holes where plastic plugs were removed. Enlarge holes as
little as possible to allow CM-SP19 and carriage bolts to pass through.
(See Hole Enlargement Diagram)
15. Reverse fishwire 1/2" carriage bolts and CM-SP19 spacers into the enlarged holes. Fishwires
should remain attached to prevent loss of hardware. (See Reverse Fishwire Diagram)
16. Thread fishwires through hitch mounting holes and raise hitch into position and loosely install
1/2" hex flange nuts onto the carriage bolts.
17. Place CM-11376-SP spacers between forward mounting plate and underbody supports.
18. Loosely install M10 hex bolts and 3/8" conical toothed washers into the existing vehicle weldnuts.
19. Using a 3/4" socket, torque 1/2" hardware to 110 lb-ft. Using a 17mm socket, torque M10-1.50
hardware to 56 lb-ft.
20. Mark with masking tape and trim with reciprocating saw the foam bumper pad.
(See Foam Bumper Pad Trim Diagram)
21. Mark with masking tape and trim with die grinder the rear fascia.
(See Rear Fascia Trim Diagram)
22. Reassemble rear fascia with foam bumper pad and reattach electrical connections.
23. Reattach rear fascia in reverse order of removal.
24. Reattach interior panel in reverse order of removal.
25. Reinstall spare tire kit, spare tire and spare tire cover.