A/C & HEATING service

an Uncomfortable cabin
= an uncomfortable drive.

Whether your heat’s not keeping up with Bellingham’s damp winters or your A/C’s lagging behind in August, Northwest European Autoworks is here to help. Our team of European vehicle experts diagnoses and repairs complex heating and cooling system issues — from faulty thermostats and blower motors to clogged heater cores and leaking radiators.

We don’t just recharge refrigerant and send you on your way — we dig deeper to ensure long-term performance, comfort, and system reliability.

Our Step-by-Step Diagnostic Process

We don’t guess — we diagnose. Here’s how we approach each cabin system:

heating systems checklist:

When your heat isn’t cutting it, it’s more than just inconvenient — it can signal deeper cooling system or airflow issues. Our heating diagnostics get to the root of the problem, quickly and accurately.

  • Coolant Level & Flow Check
    We inspect coolant levels and test for proper circulation through the heater core, which is a common cause of weak cabin heat.

  • Thermostat Function Test
    We test the thermostat’s opening temperature and cycling to ensure the engine warms up properly and sends heat into the cabin.

  • Heater Core Condition & Flow
    We evaluate whether the heater core is blocked, leaking, or inefficient using thermal imaging or flow testing.

  • Blend Door & Actuator Operation
    We verify that air is being properly directed through the heater core, not bypassing it — often the root of uneven heat or no heat at all.

  • Cabin Air Filter & Ductwork Check
    We inspect for clogs, debris, or mold that could restrict airflow or cause unpleasant smells.

cooling systems checklist:

Weak or warm A/C is often more than low refrigerant. We take a systems-level approach to diagnosing cooling issues — from electronic sensors to compressor performance — to make sure your climate control is reliable.

  • Refrigerant Level & Pressure Check
    We test for proper refrigerant charge and pressure using digital gauges to ensure the A/C system is pressurizing correctly.

  • Compressor & Clutch Engagement Test
    We assess whether the A/C compressor is activating and cycling properly — a key component in effective cooling.

  • Electrical & Sensor Diagnostics
    We scan the HVAC control unit and A/C pressure sensors for fault codes or calibration errors using OE-level diagnostic tools.

  • Vent Output Temperature Testing
    We measure temperature differential across vents and zones to ensure consistent cooling performance.

  • Leak Detection (UV Dye or Sniffer Test)
    We perform a detailed refrigerant leak test using UV dye or an electronic sniffer to locate even the smallest leaks.

  • Condenser, Expansion Valve & Evaporator Inspection
    We visually inspect for signs of blockage, corrosion, or wear in critical system components often overlooked in quick inspections.

why it’s important to maintain your vehicle’s heating & ac system.

Maintaining your vehicle’s heating and A/C systems isn’t just about comfort — it’s about safety, efficiency, and preventing costly repairs. A well-functioning climate system helps keep your windshield clear in cold or humid weather, preserves engine health by regulating temperature, and ensures clean, breathable air inside the cabin.

Regular inspections catch small issues early, before they turn into bigger problems that compromise performance or leave you stranded on a hot or frosty day.

we’re excited to serve you
& your vehicle.

What our clients are saying…

⭐️ ⭐️ ⭐️ ⭐️ ⭐️

“Hands down the best BMW shop in Bellingham. Super honest, incredibly knowledgeable, and zero pressure. Can’t recommend them enough.”

James W. — Fairhaven, WA

⭐️ ⭐️ ⭐️ ⭐️ ⭐️

“They took time to explain what my car actually needed — not just what they could sell me. That kind of integrity is rare.”

Emily R. — Ferndale