Most products from Our Store ship tariff & tax-free to the USA - no fees at delivery. Free shipping $150+

Sprinter Camper Van: DIY Build Resources

Photo of author
By Antoine | Updated: March 9, 2026 | 7 comments

This page gathers useful information related to the Mercedes Sprinter Van aimed at the DIY campervan builders in mind. Although we personally converted a Ford Transit Van, there are a lot of similitudes between any platform (Transit, ProMaster, Sprinter, Nissan NV) and most of what you’ll find on our website is applicable to any camper build, really. So below you’ll find data specific to the conversion of Sprinter camper van, hope that helps!

Sprinter Van Overview

Build & Price

Style

  • Cargo Van
  • Passenger Van

Length

  • Standard 19.5 ft (144″ WB)
  • Long 22.8 ft (170″ WB)
  • Extended 24.15 ft (170″ WB)

Height

  • Standard Roof (96.3″)
  • High Roof (110″)
  • Super-High Roof (120.1″)

Engines

  • 2.0L Turbo (Gas)
  • 3.0L Turbo (Diesel)

Drivetrain

  • RWD
  • 4×4

Exterior Dimensions

Interior Cargo Dimensions

To build a DIY campervan is one thing; to maximize the livable space is the real challenge! Here is your starting point (interior cargo dimensions) if going for a Sprinter Van:

Standard Length (144WB), Low Roof:

Long Length (170WB), High Roof:

Extended Length (170WB), High Roof:

All photos credit: https://www.adriansteel.com/item/cargo-vans/dimensions/

Repair and Maintenance

Opinions toward the Mercedes Sprinter are very polarized. You get a high-end vehicle from a high-end brand, it’s all good right? Well, it’s a bit more complicated than that. The saying “more features = more potential for failure” seems to hold true for the Sprinter. And once you run into issues, you get high-end bills as well…

Sprinter Van Annual Repair Cost

$ 1,778 USD

Ford Transit Annual Repair Cost
$ 866 USD
ProMaster Annual Repair Cost
$ 859 USD

source: repairpal.com

Manuals

Online discussion forums and Facebook groups are great resources, but not that much… there is a lot of misinformation in those. Why not check your facts straight from the owner’s manual or from the Body and Equipment Guideline (BEG)? You’ll find answers to most of your questions, from a credible source! Indeed, no one knows the product better than the OEM (Original Equipment Manufacturer). “How-To Tap for Auxiliary Power?”, “Where are the no-drill zones?”, etc: it’s all in there. Download the PDF files and use the “SEARCH” function:

Sprinter Van Owner’s Manual
Sprinter Van Body and Equipment Guideline (BEG)

Sprinter vs Transit vs ProMaster vs Nissan

Sprinter, Transit, ProMaster, Nissan… not sure which van is the best for a campervan conversion? We gathered some data about each model to help you make up your mind: overview, build & price, exterior dimensions, interior dimensions, repair cost, etc. This way:

Tires for Sprinter Van

The 2500 Sprinter Van comes equipped with 245/75R16 tires, but most folks looking to go off the beaten track (like us) choose to upgrade the factory tires for BFGoodrich KO2 245/75R16 All-Terrain tires. We’ve been running them on our van since 2016 and we’re not looking back (our first set last 45K miles, we are currently on our second set):

BFGoodrich KO2 LT245/75R16 E Tires
Our BFGoodrich KO2 Tires Review

Electrical Wiring Diagram for Sprinter Camper Van

We designed our electrical system with flexibility in mind. It can be downsized (e.g. no shore power, no alternator charging, no 120V, etc.) or up-sized (more solar, more battery bank, etc.). We also made sure it can fit in pretty much any vehicle (Transit, ProMaster, Sprinter, Skoolie, etc.). The only difference is most likely how to tap for auxiliary power (alternator charging): check out section 3.4 below for Sprinter’s specific information.

Wiring Diagram

Electrical System Design Guide

Power Tapping

For current draw larger than 25A (B2B charger, fuse box, etc.), it is mandatory to use an auxiliary battery (option E2M or E21) and to connect as follows:

The pictures above are extracted from the Body and Equipment Guideline, page 246, 247 & 248. Make sure to read these pages for manufacturer recommendations and limitations:

Water Plumbing Diagram for Sprinter Camper Van

Our water system is designed with simplicity in mind and it can be installed in a Sprinter Van: it’s fairly easy to install and simple to winterize. It can also be used below freezing temperatures (e.g. for skiing) assuming all the plumbing is install on the hot side of the van (i.e. inside). Check out our Water System “Design Guide” for more.

Water Plumbing Diagram

Water System Design Guide

Propane Diagram for Sprinter Camper Van

Once again, our propane system can be fitted in a Sprinter Campervan. The 20lbs (BBQ-style) is easy to fill anywhere and is located inside a vented locker (per marine regulations) for maximum safety. Neat!

Propane System Design Guide

Sprinter Camper Van Build Guide

We obsessively documented our campervan conversion in our Build Journal: material, products, techniques, lessons learned, etc. It’s all in there! Our van is built from a Ford Transit, however most of our conversion process can be applied to a Mercedes Sprinter:

Crossnut Size for Sprinter Van

We don’t like drilling holes in our van, as it could attract rust on bare edges, spread metal chips all over (almost impossible to remove and they’re the perfect rust ignition point), interfere with the van’s electronics (see BEG)! To prevent drilling holes, we used Crossnut through our conversion. Most pre-drilled holes in the Sprinter Van cargo area accept 5/16″ diameter Crossnut (amzn.to/31vS654), but some holes also accept 1/4″ (amzn.to/2MuKjk3) and #10 (amzn.to/2P4Muwb) crossnut. Check out the following article for more info (benefits, installation, tips):

Sprinter Camper Van DIY Conversion Accessories

Sprinter NCV3 High/Low Roof Vent Adapter
Under Vehicle Battery Box (NCV3 Sprinter)
Door Prop (Sprinter/Transit) Review
Minicell Floor Insulation Packages (NCV3 Sprinter)
RB Components Sprinter Van Storage Shelf
Vancillary DIY Sprinter Van Headliner Shelf Kit
Sprinter T-Vent Passenger Sliding Door
RB Components Sprinter Van Wall Cabinet

Where to Next?


Continue with

Guides

More About this topic

Want More?


We're just getting started.

Stay in Touch!


Join the 40,000+ Of Us

About Us


Nice to Meet You.

About-Us-Narrow

Hello! We’re Isabelle and Antoine.

In 2017, we sold our house (and everything in it), quit our engineering careers, and moved into our self-built campervan. Every day is an opportunity for a new adventure... We’re chasing our dreams, and hopefully it inspires others to do the same!

Exclusive Deals!


7 thoughts on “Sprinter Camper Van: DIY Build Resources”

  1. Love this and love the information!!!

    Quick question, if just using my generator as “shore power that has an inverter in it (30 amp connecter), would I still need a 3000w invertor within to power my roof ac/heater and outlets?

    Reply
  2. Man, I just paid $35 on a book for what you gave me for free and you gave me more information.

    Thank you for all the information.

    Reply
  3. Thank you!! I have been learning all I can about building a van. I am looking at a sprinter van. I review your site and all the information you put together. I am definitely referring to this information as a build bible. Great job.

    Reply
  4. I have been searching around many sites and finally landed on yours. You have put together a wonderful site full of component lists, links, pictures and easy navigation in and around the data. I want to to thank you in advance as I am planning to build a van in the near future and will definitely be referencing and interacting with your site for guidance.

    Best regards,

    Mike
    NH

    Reply

Leave a Comment