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Your Vehicle 2009 Mercedes Benz CLK550 Base Coupe 209.372 V8 5.5L

APR Ignition Coil - Priced Each

APR performance ignition coils, offering up to 10% more energy output than stock for a stronger, more reliable spark.
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APR
Mfg Part #
MS100266
ECS Part #
ES#5471014
Brand
APR

SALE: 26.96 (10% OFF)
WAS: $29.99 on 07-31-2026

This product was last offered at the strikethrough price on
07-31-2026


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Availability:
In Stock
Est. Ship Date:
on Aug 10, 2026
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Product Details

Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!

Refresh your ignition system with APR Ignition Coils for a stronger, more consistent spark. Each coil pack is a direct-fit upgrade designed to support smoother idle, sharper throttle response, and reliable performance under heat and load, whether you're stock or running higher boost and power upgrades.

UP TO 10% MORE ENERGY OUTPUT THAN STOCK: Unlock max engine efficiency with top of the line engineering. APR coils produce a more consistent spark which can mean increased engine power, improved throttle response, quicker acceleration, & smoother idling.

DURABILITY MEETS ENGINEERING:
No more sluggish acceleration or misfires. From premium materials to rigorous testing, each coil is engineered for consistency, durability, and more efficient power delivery all packaged in a sleek, performance-grade casing.

COMPATIBILITY:
APR MS100266 Coil fits a variety of Audi and VW vehicles - Always confirm visually before installation to ensure proper fit.

CHECK YOUR MAKE AND MODEL:
Audi A4, A6 Allroad, A6, & TT and VW Golf, Jetta, New Beetle & Passat models equipped with an EA113 1.8T and EA835 2.7T. Engine Codes Include: 1.8T (APH, AUG, AWM, AWP, AWV, AWW, BEA) and 2.7T (BEL)

REPLACEMENT FOR STOCK OEM:
Direct replacement for OEM stock part numbers 06A905115D and 077905115T.  Supersessions include: 06A905115A/B/C/G/L, 06B905115D/G/H/J/L/M/N/P/Q/R, 06C905115Cand 4B0971067B/C/R

TRUSTED IN THE U.S. FOR OVER 25 YEARS:
Founded in 1997, APR is Headquartered in Opelika, Alabama and has become a global leader in quality and reliable performance aftermarket products for Volkswagen, Audi, Porsche, and other vehicles.

Includes:
One Ignition Coil (MS100266) in Red

Features:

  • Engineered specifically for turbocharged 1.8T and 2.7T engines
  • No Adapter Plates Required
  • Modernized Internal Coil Design
  • Heat-Resistant Construction
  • 10% more energy output than stock
  • Upgraded silicon steel shields for reduced energy loss and improved flux flow
  • Red housing with APR Logo
  • True upgrade, not just aesthetic
  • 1 year unlimited-mile direct-replacement warranty

This Part Fits the Following Vehicles

Make Model Submodel Engine Special Fitment Notes
Audi B5 A4 FWD 1.8T Use vehicle selector to confirm fitment
Audi B5 A4 Quattro 1.8T Use vehicle selector to confirm fitment
Audi B6 A4 FWD 1.8T Use vehicle selector to confirm fitment
Audi B6 A4 Quattro 1.8T Use vehicle selector to confirm fitment
Audi C5 A6 Quattro 2.7T Use vehicle selector to confirm fitment
Audi C5 Allroad Quattro 2.7T Use vehicle selector to confirm fitment
Audi TT MKI FWD 180HP Use vehicle selector to confirm fitment
Audi TT MKI Quattro 180HP Use vehicle selector to confirm fitment
Audi TT MKI Quattro 225HP Use vehicle selector to confirm fitment
Volkswagen 337/20AE All 1.8T Use vehicle selector to confirm fitment
Volkswagen Golf IV All 1.8T For vehicles with AWW or AWP engine codes only
Volkswagen Jetta IV All 1.8T For vehicles with AWW or AWP engine codes only
Volkswagen Jetta IV GLI All 1.8T Use vehicle selector to confirm fitment
Volkswagen New Beetle All 1.8T For vehicles with push-in style ignition coil
Volkswagen Passat B5 4 Motion 1.8T Use vehicle selector to confirm fitment
Volkswagen Passat B5 FWD 1.8T Use vehicle selector to confirm fitment
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

This product is not eligible for Lifetime Replacement

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Return and Exchanges

Need to set up a return? Click here to begin: Return Process

All you need is your order number and email address.


New/Unused Product Returns

ECS Tuning will accept returns for unused products within 90 days of the ship date for a refund to the original payment method used. The customer is responsible for the return shipping costs and fees. If selecting to use a prepaid shipping label, the shipping cost will be deducted from the total refunded amount. All new/unused products must be new, unused and must be in the original packaging, including labeling, manuals, hardware, etc. Special order parts are non-refundable.

In the event that we find an error on our website or on behalf of an ECS Tuning Representative, we will provide a return shipping label from the original delivery location.

Refused Packages

Any domestic orders that are returned to ECS Tuning as refused by receiver or non-deliverable will be subject to a return handling fee and will be processed as a return in compliance with our standard return policy, including a 15% restocking fee.

Any international orders that are refused at the time of delivery will be subject to carrier abandonment of the package, at which time the ordered products would be discarded by the carrier. The customer will not be refunded for the value of the order and the discarded products are no longer retrievable.

Return Process

Return Process

ECS Tuning now offers an online returns solution! To get started, simply log into your ECS Tuning account, Click the "View Orders" button on the My Account home page and select the order that you wish to make a return on to begin. If you have any questions, feel free to reach out to our Customer Service Team for assistance!

Please note: Refunds will be processed to the original payment method used on the order or to an in store credit, respective to the type of return that is made as well as any pre-existing arrangements with an ECS Tuning Customer Service Representative. In the event that multiple forms of payment were used, we will refund the value to an in store credit. In the event that a return label is provided, these charges may be deducted from the total refund you receive.

Original shipping costs are non-refundable and the buyer is responsible for return shipping charges. ECS Tuning will not accept COD deliveries.


All in store credit balances will expire after one year from the original purchase date.

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Shipping Policy

Free Shipping On Orders $49 & Up

Items marked with a 'Free Shipping On Orders $49 and Up' logo may qualify for free standard economy ground shipping to the contiguous United States (48 states) for most orders with a value greater or equal to $49.00 USD. Oversized products and direct ship products are excluded from this offer unless otherwise noted.

Free Shipping

Items marked as 'Free Shipping' may qualify for free standard economy ground shipping to the contiguous United States (48 states). Oversized products and direct ship products are excluded from this offer unless otherwise noted.


The policies listed above are subject to change at any time without notice.

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Lifetime Replacement

Want to know more about our Lifetime Replacement program?

Click here to learn more.

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Why You Should Shop From ECS Tuning

ECS Tuning stands out as more than an automotive parts supplier-it's a vibrant community fueled by a shared passion for cars. Born from the enthusiasm of car lovers, we offer an unmatched understanding and commitment to the automotive world, providing high-quality parts and accessories sourced from our own experiences. Our selection is meticulously crafted to meet the highest standards of performance, quality, and design, catering to both the latest trends and classic styles.


Our distinct advantage lies in our passionate team and comprehensive support, offering expert advice and seamless service from selection to installation. Shopping with ECS brings exclusive perks, including our Lifetime Replacement Guarantee and free shipping on orders over $49, enhancing the value of every purchase. As a central hub for car enthusiasts, ECS Tuning fosters a rich community where ideas and experiences flourish, transforming us from a mere supplier into a platform where automotive dreams come to life.

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Cancellation Policy

At ECS Tuning, we understand that plans can change. That's why we offer a flexible cancellation policy for our customers. You may cancel your order at any time before you receive the shipment confirmation. This policy is designed to provide you with peace of mind and the flexibility to make adjustments to your purchases as needed. Should you decide to cancel your order, simply reach out to our customer service team, and we will assist you with the process swiftly and efficiently.

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ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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