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The Bauer Auto Service Guide to Servicing Your Differential

Differential? What's that? And what's it for? I've been told by my service advisor that I need to get it serviced, but is that on the level?

Do these questions sound familiar? They're not uncommon for Cold Spring drivers. A lot of us in Cold Spring don't know what a differential is or what it's for. Every vehicle has a differential, and, yes, it does need to be serviced. In fact, it's more important to the operation of your vehicle than the air conditioner or windshield wipers.

A differential allows your vehicle tires to move at different speeds. This happens more than you think. The best example is when a vehicle is turning. The inside wheel travels a much shorter distance than the outside wheel during a turn. This means the outside wheel has to move faster than the inside wheel. Without a differential, your tires would hop and skip while turning. They would also lose traction in sand or snow.

The location of your differential depends on what kind of vehicle you drive. On a rear-wheel drive vehicle, the differential is located in the back. For a front-wheel drive vehicle, it is located on the front, but it is usually called a transaxle. Four-wheel drive vehicles have three differentials: one on the front, one in the back and one in the middle. This center differential compensates for differences in speed between the front and rear wheels.

Your differential contains strong gears that need to be protected from dirt, debris, water and other contaminants. A differential is sometimes referred to as a “gear box.” The work of these gears is to transfer power from the vehicle drive train to the wheels.

Your differential needs fluid to lubricate and cool the gears. This fluid, even though enclosed in the “gear box,” can get dirty because the gears grind down over time, releasing tiny bits of themselves into the fluid. Also, the additives in the differential fluid break down and need to be replaced. That's why preventive maintenance for your vehicle needs to include servicing the differential.

Your owner's manual can give you recommendations on how often to service your differential. But you should also consult with your friendly and knowledgeable Bauer Auto Service professional. Bauer Auto Service can give you some good auto advice on whether your vehicle needs to be serviced more frequently. For example, if you drive in hot or cold MN weather conditions, your differential will need to have its fluid changed more often.

Severe conditions will also affect your vehicle care routine and your differential. Check your owner's manual for a definition of “severe service” conditions that affect your vehicle. Examples may include driving with frequent stops and starts, a lot of short trips around Cold Spring, hot or cold MN weather conditions and towing.

Off-roading is particularly hard on a vehicle's differential. If you are an off-roader, especially if you cross MN streams or waterways, it is important that you service your differential more frequently than the recommendations suggest.

Properly servicing your differential will extend its life and keep you out of Cold Spring auto repair shops. A smooth ride is the result of proper preparation and smart choices.

 Bauer Auto Service
14455 State Hwy 23
Cold Spring, MN 56320
320-685-8846

The Straight and Narrow: Power Steering Service at Bauer Auto Service

Service to a vehicle's power steering system is part of preventive maintenance for  Cold Spring auto owners. This system provides power to the steering wheel so you can turn it with ease. Without power steering, all of the power to turn your vehicle's wheels would have to come from you.

The central element of most power steering systems is a pump. The pump pressurizes the power steering fluid, and it is this pressure that provides auxiliary steering power. A belt connected to the engine usually powers the pump, although some systems use an electric pump. Some newer vehicles have an electric motor that directly provides the power steering boost.

Pressurized fluid moves from the pump to the steering gear through a high-pressure hose. A low-pressure hose returns fluid to the pump. Power steering fluid cleans, cools and lubricates the system.

Cold Spring drivers should remember that fluid levels in the power steering system should be checked at every oil change. Low fluid levels can damage the pump, which can be expensive to repair. Low fluid levels may also indicate a leaky hose in the power steering system, so it is a good idea to inspect the hoses, especially if your fluid levels are low.

Power steering fluid breaks down over time, losing its effectiveness. It also gradually collects moisture, which can lead to corrosion in the steering system. So the fluid needs to be replaced occasionally. You should check with your owner's manual or ask your service advisor at Bauer Auto Service to learn how often this fluid should be replaced.

When your fluid is replaced, your technicians at Bauer Auto Service will remove the old fluid and replace it with new. Power steering fluids are not all created equal; the fluid has to be compatible with your hoses and seals. Bauer Auto Service can ensure that you get the right fluid for your vehicle, or you can consult your owner's manual.

Signs that your power steering system is in trouble can include the following: a steering wheel that is hard to turn, auxiliary steering power that cuts in and out, or a whining sound coming from the pump. Also, drivers in Cold Spring who are not topping off the power steering fluid on schedule may hear squealing coming from the engine belts.

To protect your steering system you should never hold the steering wheel in the far right or far left position for more than a few seconds at a time. This can wear out your pump in a hurry.

Preventive maintenance for your steering system primarily involves the power steering components, but your steering system has other parts that can wear out or be damaged by rough MN driving conditions. Such parts include the ball-joint, idler arm, steering gear, steering-knuckle and tie rod. Signs that they are in need of attention include play in the steering wheel, a vehicle that wanders, uneven tire wear and a steering wheel that is off-center. Cold Spring drivers should have their alignment checked annually. This check-up can reveal bent or damaged steering components.

For answers to other questions about your steering system, or for auto advice on any type of vehicle maintenance, check with the team at Bauer Auto Service. We can steer you in the right direction when it comes to quality car care.

Bauer Auto Service
14455 State Hwy 23
Cold Spring, MN 56320
320-685-8846

Problems with Suspension Solved at Bauer Auto Service in Cold Spring

A vehicle's suspension system is tough. It can last for years and after lots of driving for Cold Spring drivers. But it can be damaged quickly by hitting a pothole, curb or rock, and it can wear more quickly if you frequently drive off-road or on bumpy roads. A workhorse vehicle — one that hauls heavy loads — is also going to be hard on its suspension system.

Because the useful life of your suspension system contains these elements of unpredictability, it is important for Cold Spring drivers to have them inspected periodically. Worn, broken and missing parts can be identified during an inspection at Bauer Auto Service . An ineffective suspension system will decrease the driver's control over a vehicle, so when it is damaged it frequently leads to the worst kind of vehicular damage — dangerous accidents.

The suspension system is composed of springs and shock absorbers (or shocks). Springs suspend the weight of the vehicle above its axles. They allow the vehicle to “bounce” over bumps, which reduces the force of the impact on the vehicle. Shocks reduce the rebound of the “bounce,” smoothing out the ride of the vehicle. They also force the tires to retain constant contact with the road. Shocks are responsible for “handling performance,” or the ease with which the driver controls the vehicle.

The springs in the suspension system are heavy-duty and rarely break or wear out. Shock absorbers are tough, too, but they will wear out.

Your vehicle might be equipped with struts. Struts are a combination spring and shock absorber. Struts, like shocks, have a limited life span.

Inspecting shocks or struts for damage and wear should be part of your preventive maintenance routine. Since a good suspension system is ultimately a safety feature of your vehicle, it's always better to be proactive about its care. In this case, good car care can prevent accidents.

There are some signs that will warn you that your suspension system may be in need of attention. One of the signs might be a cupped wear pattern on your tires. This is caused by the shocks bouncing unevenly. Other signs of bad shocks manifest themselves in the handling performance of your vehicle. You may notice a drifting sensation when cornering, often referred to as a “floaty” feeling. If the front of your vehicle dips significantly when you brake or if it rocks back and forth after stopping, it's time for new shocks. Your technician at Bauer Auto Service will check your shocks visually. If they're leaking, they need to be replaced.

Any one of these symptoms warrants an inspection of the suspension system. You should also get your suspension system inspected if you are involved in an accident involving one of your wheels. Cold Spring drivers should never put off suspension repairs. If you experience suspension system failure, it can cause a serious accident. If one of your shocks needs to be replaced, then replace all four of them. This allows for even handling of the vehicle. Replacing just one of the shocks is rarely good auto advice.

When you replace your shocks or struts, use parts that are equivalent to — or better than — the original shocks on the vehicle. The original equipment was for the weight and expected use of the vehicle, and Cold Spring drivers should never downgrade.

Upgrading, however, is another matter for Cold Spring drivers. If your suspension system gets a workout or you just want to improve your vehicle's handling performance, then you should upgrade to a better shock. If you haul heavy loads around Cold Spring or tow a trailer, then you should definitely be getting heavy-duty shocks.

 Bauer Auto Service
14455 State Hwy 23
Cold Spring, MN 56320
320-685-8846

Drive Train Service in Cold Spring at Bauer Auto Service

The drive train in your vehicle includes all the components that transfer power from the transmission to the wheels. Those components differ depending on what type of vehicle you drive, namely, front-wheel drive, rear-wheel drive, all-wheel drive or four-wheel drive. The preventive maintenance your driveshaft needs will also differ by what type of vehicle you drive.

Let's start with front-wheel drive. In this vehicle, the transmission and the differential are combined in one component, known as the transaxle. The transaxle is connected to two half-shafts (axles), which are then connected to the wheels with a constant velocity (or CV) joint, which is protected by an airtight rubber boot.

Bauer Auto Service service for this type of driveline includes servicing the transaxle and inspecting the CV boot. If the boot is damaged, the CV joint will need to be inspected, and the boot will need to be replaced. If you hear a clicking noise in your wheel wells when you turn, you may have a damaged CV joint. A damaged CV joint should be replaced.

Rear-wheel drive vehicles generally have a transmission in the front of the car and the differential in the back. A driveshaft (it looks like a long tube) connects the transmission to the differential. Some vehicles may have a two-piece driveshaft, which are connected to the differential with universal joints or U-joints. Again, the differential is connected to two half-shafts that go out to the wheels.

Bauer Auto Service service on the drive train on a rear-wheel drive vehicle starts with servicing the differential. It will need its fluid drained and replaced regularly. The seals on the axles should also be inspected for wear or leaks. Leaking or damaged seals may mean the axle needs to be serviced as well. Also, U-joints can wear out. If you hear clunking or feel a jolt when you shift into drive or into reverse, it could indicate a driveline problem.

All-wheel drive vehicles provide power from the transmission to all of the wheels, instead of just to the front or rear. The advantage is that the vehicle can adapt to different driving conditions and transfer more power to the front or back wheels as needed. The disadvantages are that the driveline is more complicated, and the vehicle weighs slightly more.

Many all-wheel drive vehicles are based on a front-wheel drive set-up. They also have a differential in the rear and one in the center of the vehicle that allows power to transfer to the front and rear. A shaft runs from the transfer case to the center differential, and another from the center differential to the rear differential.

Servicing an all-wheel drive at Bauer Auto Service involves servicing ALL of the differentials and inspecting the joints and seals for wear, leaks or damage.

Four-wheel drive vehicles are rear-wheel drive vehicles that have an option to transfer power to the front wheels. In other words, they can be driven as either rear-wheel or four-wheel drive vehicles. These vehicles are specifically designed for the harsh driving conditions Cold Spring drivers encounter off-road. The driveline in a four-wheel drive vehicle is similar to that of an all-wheel drive vehicle. The center differential, however, is a transfer case. Maintenance requires servicing both of the differentials and the transfer case, as well as an inspection of the joints and seals.

Cold Spring auto owners would be wise to check with their owner's manual for recommendations on how often to service their vehicle drive train. It's also good auto advice to check with your friendly and knowledgeable Bauer Auto Service service advisor as well. You may live in an area in MN where weather or driving conditions require more frequent servicing of the drive train.


Good car care at Bauer Auto Service in Cold Spring always includes taking care of your driveline. Without it, your vehicle becomes a very large paperweight.

Bauer Auto Service
14455 State Hwy 23
Cold Spring, MN 56320
320-685-8846

Blind Spot Safety for Cold Spring Driving

Blind spots may be a good thing when it comes to a spouse's annoying habits, but when driving an automobile in Cold Spring, they are definitely to be avoided. So, while it's not good marital advice, it's good auto advice to minimize your own blind spots and stay out of other Cold Spring drivers' blind spots, especially when it comes to large, heavy vehicles like trucks and buses.

First, minimize your own blind spots. Do this before you pull out of the driveway or parking space. Adjust your rearview mirror so that you see as much of the area behind you as possible. And, no, this doesn't include the passengers in the back seat. The rearview mirror isn't designed to be a baby monitor.

Next, lean to the side until your head almost touches the driver's side window. Now adjust the driver's side mirror so that it just catches the side of the vehicle. Then, lean to the middle of the car and adjust the passenger's side mirror in the same way. These adjustments will ensure you the widest possible view behind your vehicle.

Of course, you can't eliminate blind spots entirely. There is always an area behind any vehicle where the driver just can't see what's there. The bigger the vehicle, the bigger the blind spot. Toddlers are just the right size to hide in a pickup's or SUV's blind spot. The blind spot on an RV or tractor-trailer can actually hide your crossover! You should always check behind any vehicle before getting in and backing up. And if you sit in the vehicle for a few minutes before backing up, it is best to get out and check again, especially if you are pulling out of a neighborhood driveway in Cold Spring. No precaution is too extreme if it saves the life of a child.

Trucks may cause about 60% of the accidents involving a truck and a car, but 78% of fatalities in such accidents are with the smaller vehicle. The number of fatalities in MN, as well as the number of crashes, could be cut significantly if Cold Spring drivers learned to properly share MN roads with trucks.

While learning to share MN roads and freeways with trucks and other large vehicles may not seem like preventive auto maintenance, it does, in fact, go hand-in-hand with good car care. Keeping your vehicle out of the body shop can save you big bucks and prevent the stress of a major accident, along with the injuries that could come with it.

The team at Bauer Auto Service in Cold Spring urges you to stay safe, and stay on the road!

Bauer Auto Service
14455 State Hwy 23
Cold Spring, MN 56320
320-685-8846