Mercedes 420SEL Expansion Tank Parts

Showing 3 out of 3 part(s) found in our catalog.

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Mercedes 420SEL
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Belts and Cooling
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Expansion Tank/Coolant Reservoir
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Early models without coolant level sensor also require 1265000084 plug kit.
1986, 1987, 1988, 1989, 1990, 1991 Mercedes 420SEL
In Stock Status
In Stock Information Icon
Leaves warehouse within 1-2 business days.
$38.99
Reg
$40.61
List
$38.50
FREE SHIPPING
Early models without coolant level sensor also require 1265000084 plug kit.
1986, 1987, 1988, 1989, 1990, 1991 Mercedes 420SEL
In Stock Status
In Stock Information Icon
Leaves warehouse within 1-2 business days.
$51.99
Reg
$54.16
List
$38.50
KIT FREE SHIPPING
This kit contains the commonly replaced expansion tank and associated parts along with Mercedes coolant.
1986, 1987, 1988, 1989, 1990, 1991 Mercedes 420SEL
Low Stock Status
Low Stock Information Icon
Leaves warehouse within 1-2 business days, if still available when processed.
$113.85
Reg
$118.59
List
$139.12

The average cost of a Mercedes 420SEL expansion tank is between $38.99 and $113.85.

The Mercedes 420SEL expansion tank is a component of the vehicle's cooling system. It is responsible for holding coolant or antifreeze as it expands and contracts due to temperature changes during engine operation. The expansion tank is typically located near the radiator, towards the front of the engine compartment.

The typical lifespan of a Mercedes 420SEL expansion tank can vary depending on various factors such as maintenance, usage, and overall vehicle condition. However, under normal circumstances, the expansion tank can last anywhere between 5 to 10 years. It is important to regularly inspect the expansion tank for any signs of damage or leaks and replace it if necessary to ensure optimal coolant circulation and engine performance.

Signs of a Faulty Mercedes 420SEL Expansion Tank

There are several signs that may indicate a faulty expansion tank in a Mercedes 420SEL:

  1. Coolant Leaks: One of the most common signs is coolant leaking from the expansion tank. You may notice puddles of coolant underneath your vehicle or visible signs of leakage around the tank itself.
  2. Overheating Engine: A faulty expansion tank can lead to a coolant system failure, causing the engine to overheat. If you frequently experience overheating issues, it might be due to a malfunctioning expansion tank.
  3. Low Coolant Levels: If you consistently find that your coolant levels are low even after refilling, it could indicate a leak in the expansion tank. Keep an eye on your coolant reservoir and check it regularly for any drastic drops in the level.
  4. Cracked or Damaged Tank: Inspect the expansion tank for any visible cracks, splits, or other damages. These can occur due to age, pressure, or other factors. A damaged tank will not hold coolant effectively and should be replaced.
  5. Cloudy or Discolored Coolant: In some cases, a faulty expansion tank can cause the coolant to become contaminated, leading to a cloudy or discolored appearance. This typically occurs when the tank is deteriorating or the seal is compromised, allowing debris or contaminants to mix with the coolant.
  6. Erratic Temperature Gauge: If you notice your temperature gauge fluctuating more than usual, it could indicate a problem with the expansion tank. A faulty tank can disrupt the proper flow of coolant, leading to inconsistent temperature readings.
  7. Coolant Odor: A leaking or faulty expansion tank can result in a distinctive coolant smell inside or around the vehicle. If you detect a sweet or pungent odor coming from your car, it's worth investigating the expansion tank as a potential source.

If you suspect a faulty expansion tank in your Mercedes 420SEL, it is recommended to have it inspected and repaired by a qualified mechanic or dealership. They can diagnose the issue accurately and recommend the appropriate course of action.

Top Mercedes 420SEL Expansion Tank Manufacturers

Genuine Mercedes and Febi are both reputable manufacturers of expansion tanks for the Mercedes 420SEL.

Genuine Mercedes expansion tanks are manufactured directly by the vehicle manufacturer or their chosen auto parts manufacturers. This ensures that these parts meet the highest quality standards set by Mercedes. Genuine branded parts are known for their original equipment quality, making them the best option for those seeking parts made to the exact specifications of the vehicle. However, due to their association with the vehicle manufacturer's brand, Genuine Mercedes parts tend to be more expensive compared to aftermarket options.

Febi, on the other hand, is an aftermarket manufacturer that produces expansion tanks compatible with the Mercedes 420SEL. While not associated directly with the vehicle manufacturer, Febi has a strong reputation in the automotive industry for producing high-quality replacement parts. These parts are manufactured to meet or exceed the original equipment quality standards, offering a reliable and cost-effective alternative to Genuine Mercedes parts.

When choosing between Genuine Mercedes and Febi expansion tanks for the Mercedes 420SEL, it ultimately depends on one's budget and preference. The Genuine branded option provides assurance of the highest quality but comes with a higher price tag, while Febi offers a reputable aftermarket alternative at a more affordable price. Both options can provide satisfactory performance and fitment for the vehicle.

Shop Deals On Mercedes 420SEL Expansion Tanks

At AutohausAZ, you can find a wide range of Mercedes 420SEL expansion tanks, making it convenient for Mercedes owners to find the specific part they need. The variety of options available ensures that customers can easily pick the expansion tank that best suits their requirements.

AutohausAZ understands the importance of quality when it comes to automotive parts. Their expansion tanks are sourced from reputable manufacturers, ensuring durability and reliability. This means that customers can trust the products' performance and longevity, giving them peace of mind knowing that they have invested in a high-quality component.

In addition to offering a diverse selection and top-notch quality, AutohausAZ also provides customers with accurate fitment information for their expansion tanks. This allows Mercedes owners to choose the correct part with confidence, knowing that it will seamlessly integrate into their vehicle's system.

Furthermore, shopping at AutohausAZ allows customers to benefit from the expertise and knowledge of their customer service team. Whether customers have specific questions about the expansion tank or need guidance throughout the purchasing process, the team is readily available to assist. Their commitment to exceptional customer service ensures a smooth and satisfying shopping experience.

Lastly, by turning to AutohausAZ for their Mercedes 420SEL expansion tank needs, customers gain access to competitive pricing. This helps them secure a high-quality component without breaking the bank. The affordability combined with the other advantages makes AutohausAZ an attractive destination for Mercedes owners seeking reliable expansion tanks.

In conclusion, AutohausAZ offers Mercedes owners a multitude of advantages when it comes to purchasing a 420SEL expansion tank. From a wide range of options, top-notch quality, accurate fitment information, knowledgeable customer service, to competitive pricing, customers can rely on AutohausAZ to fulfill their needs and exceed their expectations.

Auto Parts We Offer for Mercedes 420SEL