---
title: How to Install the Owl B2 Flex for the Sprinter
description: Step-by-step install instructions and videos for the Owl B2 Flex rear door carrier on 2019 and newer Mercedes Sprinter vans, driver side and passenger side.
---

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# How to Install the Owl B2 Flex for the Sprinter

## How to install the Owl B2 Flex rear door carrier on a 2019+ Mercedes Sprinter, driver side and passenger side.

**Before You Start**

- The B2 Flex fits 2019 and newer Mercedes-Benz Sprinter (VS30) vans, 144" and 170" wheelbase, 2500 and 3500, 2WD and 4x4, including Sprinter-based builds such as the Winnebago Revel, Storyteller Overland, Thor, Airstream, Tiffin GH1 and Jayco Terrain.
- The carrier mounts to the factory rear door hinges and to one drilled point in each rear door. Drilling is required.
- Check your hinges before you start. Some vans require the Owl hinge swap. If your hinges are not the correct style, stop and contact Owl before drilling anything.
- Work one door at a time. Never remove all of the hinge bolts at once. Leaving the middle bolt in place keeps the door aligned.
- Plan on roughly two to three hours for both doors.

**Tools and Supplies**

- Metric socket set and ratchet
- Torx bit set
- Plastic trim removal tool
- Drill and bits, including one slightly larger than 3/8"
- Center punch or a long marker
- Rust preventative spray paint (Rustoleum Rust Reformer works well)
- Blue Loctite
- Isopropyl alcohol and a clean rag

**Passenger Side Installation**

<iframe width="256" height="145" src="https://www.youtube.com/embed/dRhgctUoQaU?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen title="Install: Owl B2 Flex (Passenger)" style="position: absolute; top: 0px; left: 0px; width: 100%; height: 100%; border-width: medium; border-style: none; border-color: currentcolor; border-image: none;"></iframe>

**Step 1: Remove the Door Panel**

- Use a plastic trim tool or your fingers to pop the interior door panel off, pulling straight out so the clips do not break.
- Set the panel and any hardware aside.

**Step 2: Install the Hinge Brackets**

- Locate the bolts on the upper and lower door hinges.
- Remove the outer bolts and leave the middle bolt in place so the door stays aligned.
- Place the supplied washers on the new bolts from the B2 Flex hardware kit.
- Slide the billet aluminum bracket over the remaining middle bolt, then start the new bolts by hand. Leave everything loose for now.
- Repeat on the second hinge.

**Step 3: Hang the B2 Flex Chassis**

- With a second set of hands, lift the B2 Flex chassis into position against the hinge brackets.
- Start the chassis bolts with a washer on each, top and bottom, and leave them loose so the chassis can still move.
- Raise and lower the chassis until it sits square to the door, then snug the bolts without fully tightening them.

**Step 4: Mark and Drill the Door**

- Set the bushing in its location on the chassis to locate the drill point on the door.
- Mark the center of that point with a punch or a marker.
- Loosen the chassis bolts and swing the chassis clear of the door.
- Drill a small pilot hole on the mark, then step up to a bit slightly larger than 3/8".

**Step 5: Seal the Hole**

- Wipe the area clean and spray the inside of the drilled hole with rust preventative paint.
- Let it dry before moving on.

**Step 6: Install the Door Plate and Bushing**

- Clean the door surface with isopropyl alcohol.
- Peel the adhesive backing off the door plate, align it over the drilled hole and press evenly across the whole plate.
- Insert the bushing through the plate and into the hole.

**Step 7: Install the Inner Door Bracket**

- From inside the door, position the inner door bracket so its slotted hole lines up with the bushing.
- Run the bolt through the bushing into the bracket, then secure it with a washer and nut from the inside.

**Step 8: Final Tighten and Test**

- Apply blue Loctite and tighten the hinge bracket and chassis bolts. Snug is enough, do not overtighten.
- Confirm the bushing is snug but not crushed.
- Push and pull on the chassis. It should feel solid with no movement.
- Open and close the door and check clearance at the bumper and body.
- Reinstall the interior door panel.

**Driver Side Installation**

<iframe width="256" height="145" src="https://www.youtube.com/embed/BeEC4aWclR8?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen title="Install: B2 Flex (Driver Side)" style="position: absolute; top: 0px; left: 0px; width: 100%; height: 100%; border-width: medium; border-style: none; border-color: currentcolor; border-image: none;"></iframe>

- The driver side follows the same sequence as the passenger side, mirrored.
- Finish the passenger door first and leave it closed while you work the driver door so you can check alignment between the two halves.
- Before final tightening, close both doors and confirm the two halves line up and the latch engages cleanly.

**After the Install**

- Re-check every bolt after the first 100 miles, then at every oil change.
- Add panels and accessories only after both chassis halves are fully tightened and aligned.
- Do not exceed the rated load for the panel or carrier you are running.

**Need Help?**

Contact the Owl team or book an install at one of the Owl-owned install centers.

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