Auto HVAC System Repair
Is your dash vent flipping between freezer-cold and furnace-hot without warning? Our HVAC system repair service keeps cabin temperatures steady, so every drive feels just right.
HVAC System Repair in Grand Rapids, MI
AC that blows warm air in July or a heater that can't keep up in a Michigan winter aren't just uncomfortable - they're signs your HVAC system needs attention. At Kleyn Auto, our master-certified technicians diagnose and repair the full car HVAC system, from AC compressors and refrigerant leaks to heater cores and blend door actuators. We find the actual problem and fix it correctly — not just recharge the system and send you on your way.
Car AC Repair
When your AC stops blowing cold, the cause could be anywhere from a refrigerant leak to a failed compressor to a faulty expansion valve. We start with a full system pressure test and inspection before recommending any repairs — a recharge alone won't fix a leak, and replacing parts without diagnosing the root cause is expensive guesswork. Common AC repairs we perform include:
- AC compressor replacement
- Refrigerant leak detection and repair
- Condenser and evaporator replacement
- Expansion valve replacement
- AC recharge with the correct refrigerant type for your vehicle
- Receiver drier replacement
A/C System Repair & Maintenance
- UV-dye leak detection and electronic sniff testing
- Compressor clutch replacement and belt tension adjustment
- Vacuum, recharge, and air conditioning maintenance package
- Our technicians have the equipment and know-how to serviceR134 & R1234YF A/C systems
Car Heater Repair
A heater that blows cold air, takes forever to warm up, or only works on certain settings is just as frustrating as a broken AC - especially in a Michigan winter. Heater problems often point to a failing heater core, a stuck thermostat, low coolant, or a blend door actuator that isn't directing airflow correctly. We diagnose the full heating system and repair it correctly so you're not heading into February with a broken heater.
Heater Core Replacement
The heater core is essentially a small radiator inside your dashboard that transfers engine heat into the cabin. When it fails, symptoms include a sweet smell inside the car, foggy windows that won't clear, coolant loss with no visible leak, or a heater that simply won't produce warm air. Heater core replacement is a labor-intensive job - it requires removing significant dashboard components — but our technicians have the experience to do it correctly and efficiently.
Blend Door Actuator Repair
The blend door actuator controls the flap that directs air between hot and cold - when it fails, you lose the ability to control cabin temperature properly. Symptoms include a clicking or ticking noise from behind the dashboard, temperature that won't change when you adjust the controls, or air that's stuck on hot or cold regardless of the setting. We diagnose actuator faults with factory-grade scan tools and replace the affected unit without unnecessary dashboard disassembly.
Cabin Air Filter Replacement
A clogged cabin air filter reduces airflow through the HVAC system, causes musty smells inside the car, and makes the AC and heater work harder than they need to. We check and replace cabin air filters at every maintenance visit - it's one of the simplest and most overlooked maintenance items on most vehicles.
AC & Heat for Import & European Vehicles
European and import vehicles often use brand-specific HVAC components and control systems that require OEM-level diagnostic tools to diagnose correctly. We service all major import and European brands including BMW, Audi, Mercedes-Benz, Volkswagen, Volvo, Honda, Toyota, Subaru, Hyundai, and Kia — with the tools and training to do it right.
Warranty with Every Service
Every non-commercial automotive service is backed by our Confidence Plus Nationwide Warranty 36K/3 yr.
What Makes Us Different
Never Say No: We don’t believe in turning customers away. No matter the issue or the urgency, we’ll find a way to get you the service you need and back on the road.
Multiple Bays and Skilled Techs: With 19 service bays and a team of 9 experienced technicians, we can handle multiple vehicles at once, minimizing your downtime without ever sacrificing quality.
Master-Certified Technicians: Most of our team hold Master Certifications, meaning your equipment is being worked on by some of the most qualified professionals in the industry.
Advanced Shop Technology: Our shop is equipped with modern diagnostic and repair technology. From computer-based engine diagnostics to precision alignment tools, we’ve invested in tools that help us work smarter and faster.
Honest, Transparent Pricing: No hidden fees, no surprise charges. We’re always upfront about our pricing, so you know exactly what you’re paying for before we begin the work.
Loaner Vehicles: If you’re here for automotive repairs, we offer loaner vehicles to keep your day moving while yours is in our shop.
Contact Us About Car AC Repair Now: Call 616-209-7007!
If your defroster fogs instead of clears or your vents spit lukewarm air, dial 616-209-7007. Our friendly advisors book convenient appointments, text status updates, and deliver transparent estimates before any wrench turns.
FAQs
What Areas Do You Serve For HVAC System Repair?
Kleyn Auto is based at 6549 Wilshere Dr, Jenison, MI 49428, just off of Chicago Dr (M-121). We can be found on the cross Port Sheldon and 28th Ave, Port Sheldon, and Chicago Drive. We are only a few minutes away from the M6 highway for easy access.
As well as Jenison, we also proudly bring our services to Grand Rapids, MI; Lansing, MI; Jamestown, MI; Kalamazoo, MI; South Bend, MI; Byron Center, MI; Holland, MI; Allendale, MI; Muskegon, MI; Wyoming, MI; Walker, MI; Kentwood, MI; Grandville, MI; Hudsonville, MI; Zeeland, MI; and Grand Haven, MI.
Why Is My Car’s AC Not Blowing Cold?
Low refrigerant from micro-leaks is the top culprit. A dirty condenser or weak cooling fan can also limit heat transfer and leave you sweating. Finally, sticky blend-door actuators may mix hot and cold air until recalibrated or replaced.
How Often Should I Service My Car’s HVAC System?
Most manufacturers recommend a full inspection each spring. Technicians verify pressures, look for leaks, and perform ventilation system repair checks so blend doors don’t seize. Regular maintenance catches small issues early and protects expensive compressors while ensuring fast windshield defrost in winter.
How Much Does Car AC Repair Cost?
It depends on what's wrong. A refrigerant recharge is relatively inexpensive, while a compressor replacement or evaporator repair is more involved. We diagnose first so you know exactly what needs fixing and what it'll cost before we touch anything. Call 616-209-7007 for a straight answer on your specific vehicle.
Why Is My Heater Blowing Cold Air?
Common causes include a stuck-open thermostat, low coolant level, a failing heater core, or a blend door actuator that isn't directing airflow to the heater. We check the full heating system to find the actual cause rather than guessing at parts.
What Does A Bad Heater Core Smell Like?
A failing heater core often produces a sweet, slightly syrupy smell inside the cabin — that's engine coolant leaking into the HVAC system. You may also notice foggy windows that won't clear, or find that your coolant level keeps dropping with no visible leak under the car. If you notice these symptoms, get it checked soon — a leaking heater core can cause coolant loss and engine overheating if left unaddressed.
Ready for Reliable Cabin Comfort? Book Today!
Stop battling temperature swings. Contact Kleyn Auto at 616-209-7007 and feel the difference on your very next drive.
Kleyn Auto
Kleyn Auto Repairs & Services
From routine oil change appointments to pinpointing a stubborn check engine light, our master-certified team handles every make and model. We provide expert auto repair using factory-grade scan tools and BG-backed fluid services to extend part life and save you return trips. Need advanced driver support recalibrated after a windshield replacement? Our in-house ADAS calibration bench resets cameras and radar in one visit, so lane-keep and adaptive cruise features stay accurate. You’ll also find same-day car repair services like brake repairs, battery testing, cooling-system flushes, and precise alignment corrections. While we work, grab a complimentary loaner car and stay on schedule—it’s all about making maintenance effortless for you. Proudly serving Grand Rapids, MI and the surrounding areas.
Reviews
Customer Testimonials
"Kleyn goes above and beyond in making sure you get back on the road. They have somehow found a group of a dying breed of people that put in the extra effort to make sure the job is done correctly and quickly."
- Dan
Ned
Jacob
Aiden
Miles
Laurie
Clayton
Tim
Pam
Black
Contact & Locations
Contact us
Have questions or need to schedule a repair? Our team at Kleyn Mobile, Kleyn Auto Repair and Kleyn Fire is here to help. Located in Jenison, Michigan, we specialize in reliable, no-nonsense auto, truck and fire truck repair with fast turnaround times and honest service. Give us a call or drop by the shop — we're ready to get you back on the road.