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5211 E Thomas Rd, Phoenix

Store No. 1156

Open today until 5:30pm

Auto Service Deals u0026 Tire Savings

Auto Maintenance

Auto Maintenance

Recommended Services

Explore our trusted services designed to keep your vehicle performing at its best.

Preventative Maintenance

Stay ahead of repairs

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Vehicle Inspection

Checkups for peace of mind

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Fluid Flushes

Fresh fluids, better performance

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Alignments

Straight steering, even wear

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Batteries

Fast testing & replacement

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Flat Repairs / Tire Repairs

Fix flats & leaky tires

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Brake Repair

Safe, reliable stopping

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AC & Heating Repair

Stay cool & comfortable

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Engine Repair

Power & performance fix

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Steering & Suspension Repair

Smooth, stable handling

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Transmission Service

Smooth shifting again

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Diagnostic Service

Find & fix issues fast

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Oil Change

Quick & clean oil service

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Tire Replacement

Replace tires for safety

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Tire Rotation & Balance

Extend the life of your tires

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Phoenix's Expert Auto Repair & Tire Shop

With the biggest selection, the best service and the lowest prices, Wilhelm Automotive is your source for the best deal on tires. We have tires in stock and ready to install for most cars, trucks, SUVs and crossovers. No appointment is required for a tire purchase, and our goal is always to get our customers back on the road quickly. If you're looking for other types of service for your vehicle, Wilhelm Automotive offers a broad range of maintenance services, including oil changes, brakes, suspension repairs, transmission flushes, cooling system flushes and more.

Shop with Confidence

Free Digital Vehicle Inspection

A clear vehicle status report plus expert technician insights, so you can plan ahead with confidence.

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Flexible Financing

Get the service your vehicle needs now and pay over time.

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National Warranty

24-month/24,000-mile nationwide limited warranty on qualifying repairs.

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Reviews from our customers

Read reviews from satisfied customers who trust Sun Auto for reliable car repair, quality auto service, and expert vehicle maintenance.

Still have questions? We’ve got answers.

We've put together the most important information on tires, vehicle maintenance, repairs, warranties, and more to help you drive with confidence.

How does the extreme heat in Surprise, AZ, affect my vehicle's battery health?

Extreme heat in Surprise affects battery health by leading to accelerated degradation as the electrolyte in vehicle batteries evaporates more rapidly. Internal components also degrade quicker under these conditions, increasing the risk of failure. To mitigate this risk, it is essential to have the battery checked regularly to identify weak cells before they lead to a breakdown on a hot day. Prioritizing these inspections ensures the vehicle remains reliable and can handle the local climate.

Why is my vehicle's performance sluggish when driving in 110°F+ Phoenix weather?

Sluggish performance in 110 degree Phoenix weather is often a sign of high internal resistance in the battery caused by the evaporation of electrolytes. This chemical change makes it much harder for electricity to flow through the battery to the starter motor. During a heatwave, the battery is also under a high electrical load from the cooling fans and air conditioning, meaning any internal degradation will be quickly exposed, often resulting in a vehicle that refuses to start after a short trip.

How does the extreme heat in Goodyear affect my vehicle's battery health?

Extreme heat in Goodyear affects battery health by accelerating chemical degradation within the cells, leading to premature failure and unexpected breakdowns. This is especially true during the peak summer months when under-hood temperatures are at their highest. To ensure a vehicle stays reliable, it is essential to have regular battery checks and maintenance to verify that the internal lead grids are still capable of conducting the current required to start the engine.

How does the Phoenix sun affect the charging system and battery health?

The Phoenix sun creates an intense environment where battery electrolytes can boil off, leading to internal component breakdown and premature failure. This loss of liquid changes the chemical balance of the battery, making it much more susceptible to internal shorts and corrosion. Professional battery testing and charging system analysis are needed to verify that a vehicle is running smoothly. Using a battery with a high reserve capacity is often the best way to ensure the heat does not compromise the car’s reliability.

How does the extreme heat in Litchfield Park affect my vehicle's battery health?

In Litchfield Park, heat-induced fluid loss is the primary reason for battery death and charging system failure as temperatures climb. When the battery fluid is low, the charging system must work harder to try to fill a battery that can no longer hold energy. This overworks the alternator and can lead to a dual failure of both the battery and the charging components. Regular inspections of the charging system ensure the battery is not being overcharged, which would only worsen the damage caused by the Arizona heat.

How does the extreme heat in Peoria, AZ, affect my vehicle's battery life?

Peoria’s climate accelerates the corrosion of battery cables and connectors, leading to poor electrical conductivity and unexpected breakdowns. When heat causes the battery to vent gases, those gases can react with the metal terminals, creating a layer of oxidation that blocks power. This resistance prevents the battery from receiving a full charge from the alternator, leading to a cycle of undercharging that eventually kills the battery. Ensuring clean connections is a vital part of desert vehicle maintenance.

How does extreme heat in Glendale affect my vehicle's battery health?

When Glendale hits triple digits, the chemical reactions inside a vehicle battery accelerate to dangerous levels, causing the electrolyte to evaporate and internal components to fail. This evaporation increases the concentration of acid in the battery, which can corrode the internal plates and lead to a short circuit. Professional diagnostics can often catch this internal cell damage before it results in a complete failure, ensuring the vehicle can withstand the heavy demands of the local environment.

How does the extreme heat in Peoria, AZ, affect my vehicle's battery life?

Peoria’s climate accelerates the corrosion of battery cables and connectors, leading to poor electrical conductivity and unexpected breakdowns. When heat causes the battery to vent gases, those gases can react with the metal terminals, creating a layer of oxidation that blocks power. This resistance prevents the battery from receiving a full charge from the alternator, leading to a cycle of undercharging that eventually kills the battery. Ensuring clean connections is a vital part of desert vehicle maintenance.

How often should I service my vehicle?

You should service your vehicle every 5,000 to 7,500 miles or every 6 months, whichever comes first, for routine maintenance like oil changes and inspections. Always check your owner’s manual, as some vehicles and driving conditions may require more frequent attention to keep everything running smoothly and safely.

How do I know what services to perform on my vehicle and when?

Any of our friendly, neighborhood locations can help you determine the schedule that’s best for your car. In many cases, the maintenance schedule is determined by the manufacturer for optimal service life for your vehicle; this can be found in the owner’s manual.

Do I need an appointment, or can I walk in?

Appointments are recommended, but walk-ins are always welcome.

Will I get an estimate before work begins?

Absolutely. We provide clear estimates and only complete the work you approve.

Why is my check engine light on?

It could be something simple or serious. We recommend a diagnostic scan to find the cause.

How do I know when my next oil change is due?

After each oil change at Wilhelm Auto Repair & Tires, our technician will place a reminder sticker in the upper left-hand corner of your windshield. For added convenience, we can also send you a service reminder when it’s time for your next appointment. To enroll in this program, ask your Service Advisor for details.”

Is my warranty voided if I get non-dealer work done?

No. In fact, it is against the law for a manufacturer to dishonor their warranty just because the vehicle was serviced elsewhere. As long as the service is performed by capable car mechanics like the ones at your friendly neighborhood Wilhelm Auto Repair & Tires, your warranty is valid.