A summer car trip to the sea has long become a familiar part of vacation for many. However, a long route in hot weather turns into a serious test for the car. High air temperatures, prolonged traffic jams, and constant stress on the highway can quickly reveal even hidden malfunctions.
Experts warn: if you don't check the main components of the car in advance, the trip may end not with a vacation, but with a forced stop on the roadside waiting for a tow truck.
The first thing they advise to start preparing with is a thorough check of the engine compartment. Special attention should be paid to technical fluids, as they directly affect engine operation in hot conditions.
Before a long journey, it is imperative to check:
- engine oil level and condition
- amount of antifreeze
- brake fluid condition
- presence of leaks in the engine compartment
A long trip creates a completely different load compared to normal city driving. A route of about 2000 kilometers can quickly exacerbate even minor problems.
The tightness of the main car systems requires special attention. High temperatures particularly negatively affect old rubber elements. Therefore, before the trip, it is important to make sure that:
- the gearbox has no leaks
- the steering rack is completely sealed
- the fuel system works without leaks
Experts also recommend not postponing oil and filter changes if the service interval is approaching. Even the remaining two or three thousand kilometers of mileage can be critical in extreme heat. At high temperatures, lubricants lose their properties significantly faster.
One of the most vulnerable parts in summer is the radiator. While driving, it quickly gets clogged with poplar fluff, dust, and insects. This impairs engine cooling, and the risk of overheating sharply increases — especially in prolonged traffic jams.
Before the trip, specialists advise:
- clean the radiator fins
- check the fan operation
- ensure the thermostat is working correctly
Ignoring the cooling system is extremely dangerous. Engine overheating can even lead to cylinder head deformation.
The chassis also requires no less attention. At high speeds, vibrations significantly accelerate the wear of suspension and transmission parts.
It is especially important to check:
- wheel bearings
- bushings;
- CV joint boots
- the overall condition of the suspension
A torn CV joint boot on a long trip can become a serious problem, especially far from large settlements and service centers.
The braking system must be in almost perfect condition before a long journey. Experts remind: if the car was bought on the secondary market, checking the brake lines becomes a mandatory procedure.
In hot weather, particular danger is posed by:
- old brake hoses
- tubes with microcracks
- worn brake discs
- pads with minimal remaining life
If the route exceeds 5000 kilometers, specialists advise taking a set of spare pads with you.
It is also recommended to check the condition of the brake fluid. Since it actively absorbs moisture, its properties deteriorate over time. With strong heating, this can lead to the formation of vapor locks and reduced braking efficiency.
Summer traffic jams create additional stress on the car's electrical system. In slow traffic, the generator often operates at minimal efficiency, while the air conditioner, music, and gadget charging continue to actively consume energy.
Before the trip, it is advisable to make sure that:
- the battery holds a charge
- the generator is working properly
- the voltage on a running engine is within 13.8–14.4 V
On a long journey, the following may also be useful:
- a jump starter
- a spare battery
- chargers for devices
In summer, unsuitable tires pose a particular danger. Experts warn: operating winter tires in hot weather seriously impairs car handling.
At high temperatures, winter "Velcro" becomes too soft, which leads to:
- increased braking distance
- worsened stability
- increased risk of an emergency situation
Before the trip, it is necessary to check the remaining tread depth. It is desirable that it be at least 3–4 mm. In addition, specialists advise paying attention to the age of the tires — tires older than 5–6 years gradually lose their properties even with good external condition.
There are also recommendations for pressure. On hot asphalt, the air inside the wheels expands, so after a long trip, the pressure can increase by about 0.3–0.4 bar. For this reason, some drivers slightly reduce the pressure relative to factory settings.
The final stage of preparation is checking the climate system. On a summer trip, a working air conditioner is no longer a matter of comfort, but a full-fledged necessity.
Experts advise turning on the climate control to the minimum temperature and making sure that truly cold air comes out of the deflectors after a few minutes.
If the cooling is weak, the reason may be:
- lack of freon
- contamination of the air conditioner radiator
- malfunction of the cooling system
Specialists also remind about the need for timely antifreeze replacement. If the coolant has not been changed for more than three years or 60 thousand kilometers of mileage, it is better to update it before a long journey.