What does the coolant light on my Mercedes-Benz dashboard mean?

Your engine might be about to overheat. If your low coolant light is on, pull over in a safe area and wait for your engine temperature to go down. Once it’s safe to do so, bring your car to your nearest Firestone Complete Auto Care to have the coolant system inspected.

Is an antifreeze leak dangerous?

It's better to get it fixed sooner than later. Antifreeze is toxic if consumed, but its smell can attract cats and dogs. Keep your whole family safe by repairing antifreeze leaks ASAP and thoroughly hosing down your parking spot to get rid of any lingering residue on the ground.

Do Mercedes-Benz S400 radiators need to be cleaned?

It could be a good idea to have your Mercedes-Benz S400 radiator cleaned out a couple of times a year, maybe at the same time as a tire rotation or oil change.

What is causing my S400 to overheat?

Your Mercedes-Benz S400 engine could overheat due to low coolant, a clogged radiator, a damaged water pump, a malfunctioning cooling fan, or a faulty thermostat.

Why does the radiator in my S400 sound like it’s rumbling or boiling?

If your radiator sounds like it's boiling or rumbling, you could have air pockets in the cooling system of your S400. You might also have a damaged radiator cap (super easy to fix!) or a clogged radiator.

Is rust in my S400 radiator bad?

Yes. If you have rust in your Mercedes-Benz S400 radiator, it could cause leaks, negatively impact cooling efficiency, and eventually lead to radiator failure. Left unaddressed, radiator rust can erode the cooling passages, creating cracks or small holes. Properly maintaining your radiator system can help stop it from rusting.

2012 Mercedes-Benz S400 Radiator Service

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Service Your Mercedes-Benz S400 Radiator

Don’t let the heat of the moment – or of your engine – get to your head. Schedule a radiator repair or service for your 2012 Mercedes-Benz S400 today.

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When Does My 2012 Mercedes-Benz S400 Radiator Need Service?

If you’re not sure what the purpose of a radiator is, it’s hard to tell when to have your Mercedes-Benz S400 radiator serviced. Nonetheless, it’s vital to know what to look for. The radiator is in the cooling system of your car, and it helps your engine temperature stay within a safe range. If your radiator isn’t functioning like it’s supposed to, the engine can overheat – or worse, break down.

Regular, proactive service on the radiator in your 2012 Mercedes-Benz S400 is essential for long-term engine health. Mercedes-Benz recommends that you replace coolant (also called antifreeze) at certain intervals, but you can also take note of any signs your radiator is going bad. You could be on the verge of a radiator-induced engine breakdown if you notice leaking coolant, overheating, or an illuminated low coolant dashboard light. As soon as you see one of these symptoms, come to your nearest Firestone Complete Auto Care for a Courtesy Check.

What to Expect from Mercedes-Benz S400 Radiator Repair

What happens during a radiator repair service? If you bring your vehicle to Firestone Complete Auto Care, we start with a comprehensive inspection of your Mercedes-Benz S400’s cooling system. We then do a machine-powered radiator exchange, replenish flushed chemicals, sealants, and lubricants, and then pressure check for leaks.

Radiator problems often go hand in hand with water pump problems. Some services for your 2012 Mercedes-Benz S400 engine can wait, but the water pump is one part that you can't put off repairing or replacing. This pump ensures that coolant is always flowing through the radiator, hoses, and engine. If it isn’t functioning properly, your engine won’t be able to stay within its optimal temperature range. Our trained technicians can inspect your car’s radiator hoses and pumps to help you stay ahead of any potential engine problems. From the radiator cap to the heater core, your 2012 Mercedes-Benz S400 is in good hands at Firestone Complete Auto Care. We stand behind our work with our Triple Promise: Fixed Right, Priced Right, Right on Time.

Common Mercedes-Benz S400 Radiator Questions

With regular maintenance and service as needed, you could extend the life of your 2012 Mercedes-Benz S400 radiator. Get answers to common radiator questions, and head to your nearest Firestone Complete Auto Care as soon as you suspect a radiator issue.

What does the coolant light on my Mercedes-Benz dashboard mean? Your engine might be about to overheat. If your low coolant light is on, pull over in a safe area and wait for your engine temperature to go down. Once it’s safe to do so, bring your car to your nearest Firestone Complete Auto Care to have the coolant system inspected.
Is an antifreeze leak dangerous? It's better to get it fixed sooner than later. Antifreeze is toxic if consumed, but its smell can attract cats and dogs. Keep your whole family safe by repairing antifreeze leaks ASAP and thoroughly hosing down your parking spot to get rid of any lingering residue on the ground.
Do Mercedes-Benz S400 radiators need to be cleaned? It could be a good idea to have your Mercedes-Benz S400 radiator cleaned out a couple of times a year, maybe at the same time as a tire rotation or oil change.
What is causing my S400 to overheat? Your Mercedes-Benz S400 engine could overheat due to low coolant, a clogged radiator, a damaged water pump, a malfunctioning cooling fan, or a faulty thermostat.
Why does the radiator in my S400 sound like it’s rumbling or boiling? If your radiator sounds like it's boiling or rumbling, you could have air pockets in the cooling system of your S400. You might also have a damaged radiator cap (super easy to fix!) or a clogged radiator.
Is rust in my S400 radiator bad? Yes. If you have rust in your Mercedes-Benz S400 radiator, it could cause leaks, negatively impact cooling efficiency, and eventually lead to radiator failure. Left unaddressed, radiator rust can erode the cooling passages, creating cracks or small holes. Properly maintaining your radiator system can help stop it from rusting.