Mercedes C400 Coolant Hose Parts

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Upper Hose C400. C43amg. C450amg. Sedan, 3.0L. Your part is located within diagram as #11.
2015 Mercedes C400
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$79.99
Reg
$83.32
List
$84.00
Lower Hose C400. C43amg. C450amg. Sedan, 3.0L.
2015 Mercedes C400
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$71.99
Reg
$74.99
List
$79.00
Reservoir Hose, Coolant Filling Hose C400. C300. C350e. C43amg. C450amg. Sedan, 2.0L. Coupe, convertible, 3.0L. Coupe, convertible, 2.0L.
2015 Mercedes C400
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$42.99
Reg
$44.78
List
$42.00
For models with 722.9xx 7-speed automatic transmission only. Up to 4 per car.
2015 Mercedes C400
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$1.49
Reg
$1.55
List
$1.50
Water Return Tube C43amg. Outlet. 3.0L-v6. Sedan, 3.0L. Glk/glc, 3.0L. 3.0L biturbo. Coolant return. Turbocharger Cooling. Cls400, cls400 4matic. Incl.Left and Right Hoses and Pipes. Your part is located...
2015 Mercedes C400
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$158.99
Reg
$165.61
List
$222.00
Feed Line Left. Inlet. C43amg. 3.0L-v6. Incl.Pipe. Glk/glc, 3.0L. Coolant feed. 3.0L biturbo gas. Coupe, 3.0l biturbo. Cls400, cls400 4matic. Turbocharger Cooling. Your part is located within diagram...
2015 Mercedes C400
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$84.99
Reg
$88.53
List
$99.00
Feed Line Right. Inlet. C43amg. 3.0L-v6. Suv, 3.0L. Incl.Pipe. Glk/glc, 3.0L. Coolant feed. 3.0L biturbo gas. Cls400, cls400 4matic. Turbocharger Cooling. Your part is located within diagram as #15.
2015 Mercedes C400
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$82.99
Reg
$86.45
List
$89.00
Vent Hose; Vent Line Coupe, convertible, 3.0L. Your part is located within diagram as #17.
2015 Mercedes C400
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$93.99
Reg
$97.91
List
$66.00

Based on industry averages you can expect to pay between $1.49 and $158.99 for a Mercedes C400 coolant hose.

What Are The Signs Of A Failing Mercedes C400 Coolant Hose?

If your Mercedes C400 coolant hose starts to wear out, you might spot a few things early. Puddles or spots under the car, especially if the liquid feels slick or has a sweet scent when warm, are common. Sometimes, you’ll notice cracks running along the hose, or parts might swell up and look larger than normal. When the hose weakens, engines heat up faster, and you may encounter sudden spikes in temperature on your dash. Some drivers also spot warning lights triggered by dropping coolant levels. If the hose feels unusually soft or you see it bulging, it’s time to take action. Letting these issues go can leave you stranded on the side of the road with an overheating engine.

How Often Should I Replace The Mercedes C400 Coolant Hose?

Changing your Mercedes C400 coolant hose comes down to miles driven, the kind of weather you deal with, and routine maintenance. Many people swap hoses every 60,000 to 100,000 miles, but harsh weather or heavy city driving speeds up wear. A good rule is to look everything over twice a year or with every major service. Even if a hose looks okay, five years is usually the upper limit before you’re rolling the dice. Don’t wait for trouble; swapping hoses before they fail keeps the cooling system dependable and helps avoid surprise shop visits.

Which Coolant Hose Does My Mercedes C400 Need?

Always match your Mercedes C400 coolant hose to your car’s exact model year and engine. Mercedes uses different shapes and connectors, even across a single model line. The safest bet is to check your owner’s manual, jot down the VIN, and compare part numbers before ordering. Most dealers or trusted parts shops can look it up for you. Skipping this can lead to leaks if the fit isn’t snug, turning a simple repair into a bigger headache. Stick to OEM parts or quality replacements when in doubt.

Can I Replace The Mercedes C400 Coolant Hose Myself?

Plenty of owners handle Mercedes C400 coolant hose swaps at home, especially with some basic tools and a little patience. Gather the new hose, a set of clamps, a catch pan for coolant, and fresh fluid. Start after the engine cools, and disconnect the battery just to be safe. Remove the old hose, secure the new one using sturdy clamps, then refill and bleed the cooling system just like the manual describes. If a step has you second-guessing, or if the hose route looks cramped, a seasoned mechanic can finish the job and test for leaks.

What Causes Mercedes C400 Coolant Hose Failure?

Most Mercedes C400 coolant hose issues come from age, heat, and contact with fluids that break down rubber. Years of cycling from hot to cold, or getting splashed with oil, leave hoses cracked or mushy. Some problems set in faster if you skip regular coolant changes, use cheap parts, or install hoses that don’t fit well. Watch for wear after long road trips or driving in stop-and-go traffic. Regular under-hood inspections help catch these problems before hoses split and leave you waiting for a tow.

Where Can You Find Affordable Mercedes C400 Coolant Hoses?

You don’t need to overpay for a reliable Mercedes C400 coolant hose. AutohausAZ stocks quality parts for less, and their shipping moves fast, letting you get repairs done without a long wait. If you grab the wrong part, returns are painless, so there’s nothing to worry about. When your C400’s cooling system needs attention, their selection and service keep things easy and within budget.