Top 5 Common Repairs for Mercedes Sprinters (and How to Prevent Them)
Mercedes-Benz Sprinter vans have a reputation for being durable, practical, and efficient. Whether used for deliveries, carrying passengers, or a mobile workshop, Sprinter vans are a favorite of business owners all over the Lower Mainland. Of course, as with any workhorse, there are common issues that will come up. At Amayak Auto Service in New Westminster, we specialize in diagnosing and repairing Sprinters to keep them out on the road 🛠️.
In this blog, we will discuss the 5 most common Sprinter van repairs and what you can do to avoid expensive downtime through preventative maintenance.
1. Diesel Exhaust Fluid (DEF) System Failures
🚨 Problem:
Sprinter vans with BlueTEC diesel systems are heavily reliant on the DEF system for emissions reduction. However, DEF tank, heater, sensor, and pump failures are very common, especially in cooler climates like Vancouver.
⚠️ Symptoms:
- DEF low or no start countdown warnings
- Check engine light
- Reduced power mode (limp mode)
⚙️ How to Prevent It:
- Always use high-quality DEF fluid from trusted suppliers.
- Fill-up or top off the DEF tank as often as possible.
- Have the DEF system checked during routine maintenance.
- Do not ignore warning lights for restarted problems.
2. Oil Cooler Leaks
🚨 Problem:
The oil cooler seals on a Sprinter will leak, even if you don’t see the leak right away. If you ignore these leaks, you could end up with major engine problems.
⚠️ Symptoms:
- Oil spots under the van
- Burning oil smell
- Low oil
⚙️ How to Prevent It:
- Perform regular oil inspections and checks on levels.
- Change engine oil and filters every 8,000km using OE or OEM products.
- Ask to have the oil cooler inspected at your scheduled services at Amayak Auto Service.
3. Turbo Resonator Failures
🚨 Problem:
Turbo resonators are plastic components that limit turbo noise. They often crack when loaded.
⚠️ Symptoms:
- Loss of power
- Whistling noise from the engine bay
- Check engine light on with under boost codes
⚙️ How to Prevent It:
- Upgrade to an aftermarket all-metal version if possible.
- Get the whole boost system checked at regular intervals.
- Don’t overload your Sprinter past its rated capacity.
4. Transmission Issues
🚨 Problem:
The transmission in a Sprinter is generally quite strong, however, issues related to fluid contamination, valve body failure, and torque converter issues often arise with high miles or no maintenance.
⚠️ Symptoms:
- Delayed shifts
- Slipping between gears
- Transmission warning light
⚙️ How to Prevent It:
- Change transmission fluid and filter every 60,000 – 80,000 km.
- Don’t drive aggressively or tow above specifications.
- Have the fluid checked every time you have a major service.
5. Glow Plug and Glow Plug Module Issues
🚨 Problem:
Radiant heat starting, in diesel engines, relies on glow plugs for cold starts. In Sprinters, glow plugs and modules can fail, complicating cold starts, and even destroying engine control unit (ECU) programming (and engine performance).
⚠️Symptoms:
- Difficult starting in cold weather
- Rough idle after starting
- Glow plug warning light (if applicable).
⚙️ How to Prevent It:
- Replace glow plugs preventatively at every 100,000–120,000 km.
- If you are replacing glow plugs, be sure to check (and if needed, replace) the glow plug control module.
- Do not ignore starting issues at any time; taking action early will save costly repairs later.
Why Should You Trust Amayak Auto Service for Sprinter Repairs?
🏆 At Amayak Auto Service in New Westminster, we have the expertise, diagnostic equipment, and OE/OEM parts needed to keep your Mercedes-Benz Sprinter running reliably. Whether you have a single van or an entire fleet throughout the Lower Mainland, we can help keep your vehicle(s) running, increasing your uptime and minimizing unexpected breakdowns.
Want to give your Sprinter the expert care it deserves?
👉 Now is the time to book your Mercedes Sprinter service at Amayak Auto Service!
In New Westminster, Vancouver, Burnaby, and the entire Lower Mainland, we service your Sprinter, you receive expert repair and maintenance.
