{"product_id":"mercedes-benz-2000-2013-eis-ezs-ignition-switch-repair-cloning-programming","title":"Mercedes-Benz 2000–2013 EIS \/ EZS Ignition Switch Repair, Cloning \u0026 Programming","description":"\u003cp\u003e\u003cstrong\u003eRestore your Mercedes ignition system without expensive dealer replacement!\u003c\/strong\u003e Our professional \u003cstrong\u003eMercedes-Benz EIS (Electronic Ignition Switch) cloning and programming service\u003c\/strong\u003e saves you time and money. Ideal for models built between \u003cstrong\u003e2000–2013\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🔧 How It Works\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e your EIS and key from your vehicle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInclude\u003c\/strong\u003e a matching donor EIS module (used or new) with the same part number.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdd this service to your cart\u003c\/strong\u003e, complete payment, and send \u003cstrong\u003eboth EIS modules\u003c\/strong\u003e (marked \u003cem\u003eOld\u003c\/em\u003e and \u003cem\u003eDonor\u003c\/em\u003e) along with a printed \u003cstrong\u003ereceipt or order number\u003c\/strong\u003e to:\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"color: #ff2a00;\"\u003e\u003cstrong\u003eModule Medics\u003cbr\u003e606 Baltimore Ave, Suite 405\u003cbr\u003eTowson, MD 21204\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOnce received, we will:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eClone your original EIS data onto the donor EIS\u003c\/li\u003e\n\u003cli\u003eBench test the EIS and key for quality\u003c\/li\u003e\n\u003cli\u003eReturn your working cloned EIS within \u003cstrong\u003e3 business days\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e🚚 Free 2–3 day return shipping is included.\u003c\/strong\u003e Need it faster? Include your own overnight return label.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOnce reinstalled — simply plug in and start the car. That’s it!\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e⚠️ Common Mercedes EIS \/ EZS Ignition Switch Symptoms\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eKey won’t turn in the ignition (no rotation at all)\u003c\/li\u003e\n\u003cli\u003eKey turns but car won’t start\u003c\/li\u003e\n\u003cli\u003eNo response from dash or instrument cluster\u003c\/li\u003e\n\u003cli\u003e“Remove Key” or “Key Not Recognized” message\u003c\/li\u003e\n\u003cli\u003eNo crank or start even with a good battery\u003c\/li\u003e\n\u003cli\u003eIntermittent ignition or key recognition issues\u003c\/li\u003e\n\u003cli\u003eRemote locks\/unlocks but ignition doesn’t engage\u003c\/li\u003e\n\u003cli\u003eSteering lock (ESL) not clicking or unlocking\u003c\/li\u003e\n\u003cli\u003eGear selector stuck in Park (EIS authorization failure)\u003c\/li\u003e\n\u003cli\u003eAccessory power anomalies (radio\/windows active but no start)\u003c\/li\u003e\n\u003cli\u003eMultiple CAN communication faults stored (EIS\/ESL\/ECM)\u003c\/li\u003e\n\u003cli\u003eBattery drain or low-voltage sensitivity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e💡 Why the EIS Ignition Fails\u003c\/h2\u003e\n\u003cp\u003eIf the \u003cstrong\u003eEIS (Electronic Ignition Switch)\u003c\/strong\u003e becomes faulty, the key may stop turning or the engine won’t start. When this occurs, the ignition function disables itself, locking the module as a security measure. Common causes include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eJump-starting the vehicle while the key is inserted\u003c\/li\u003e\n\u003cli\u003eElectrical surges or voltage spikes\u003c\/li\u003e\n\u003cli\u003eLow or unstable battery voltage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese issues can lead to \u003cstrong\u003ememory corruption or CPU failure\u003c\/strong\u003e within the EIS. Once corrupted, the module cannot be repaired or re-flashed using standard Mercedes diagnostic tools like Xentry, Star, or DAS. Dealerships typically recommend full replacement — a costly solution.\u003c\/p\u003e\n\u003cp\u003eOur service offers an affordable alternative. By cloning your original EIS data to a donor unit, you retain your existing keys and avoid dealership programming costs.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🧠 Technical Insight\u003c\/h2\u003e\n\u003cp\u003eCommon failures occur in EIS units equipped with the \u003cstrong\u003eMotorola HC08 microprocessor (Maskset 4J74Y)\u003c\/strong\u003e. These older modules often exhibit intermittent key recognition or total CPU crash, similar to a frozen computer. Our advanced cloning process restores full functionality and key synchronization.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🚘 Compatible Mercedes-Benz \u0026amp; Sprinter Models (2000–2013)\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eA-Class:\u003c\/strong\u003e W169\u003cbr\u003e\u003cstrong\u003eB-Class:\u003c\/strong\u003e W245\u003cbr\u003e\u003cstrong\u003eC-Class:\u003c\/strong\u003e W202, W203, W204\u003cbr\u003e\u003cstrong\u003eE-Class:\u003c\/strong\u003e W210, W211, W212, W207\u003cbr\u003e\u003cstrong\u003eS-Class:\u003c\/strong\u003e W220, W221\u003cbr\u003e\u003cstrong\u003eML-Class:\u003c\/strong\u003e W164\u003cbr\u003e\u003cstrong\u003eGL-Class:\u003c\/strong\u003e X164\u003cbr\u003e\u003cstrong\u003eCLK-Class:\u003c\/strong\u003e W208, W209\u003cbr\u003e\u003cstrong\u003eCLS-Class:\u003c\/strong\u003e W219\u003cbr\u003e\u003cstrong\u003eGLK-Class:\u003c\/strong\u003e X204\u003cbr\u003e\u003cstrong\u003eG-Class:\u003c\/strong\u003e W463\u003cbr\u003e\u003cstrong\u003eV-Class:\u003c\/strong\u003e W639\u003cbr\u003e\u003cstrong\u003eCL-Class:\u003c\/strong\u003e W215, W216\u003cbr\u003e\u003cstrong\u003eSL-Class:\u003c\/strong\u003e R230\u003cbr\u003e\u003cstrong\u003eSLK-Class:\u003c\/strong\u003e R171\u003cbr\u003e\u003cstrong\u003eR-Class:\u003c\/strong\u003e W251\u003c\/p\u003e\n\u003ch3\u003eSupported EIS Part Numbers Include (and many more):\u003c\/h3\u003e\n\u003cp\u003eA164 905 15 00\u003cbr\u003eA203 545 01 08\u003cbr\u003eA203 545 05 08\u003cbr\u003eA203 545 06 08\u003cbr\u003eA210 545 00 08\u003cbr\u003eA210 545 10 08\u003cbr\u003eA215 545 00 08\u003cbr\u003eA215 545 08 08\u003cbr\u003eA220 545 03 08\u003cbr\u003eA220 545 07 08\u003cbr\u003eA220 545 08 08\u003cbr\u003eA220 545 09 08\u003cbr\u003eA230 545 07 08\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e❓ Frequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003ch3\u003eWhat happens if you can’t repair my EIS?\u003c\/h3\u003e\n\u003cp\u003eWe’ll return your parts and issue a \u003cstrong\u003efull refund\u003c\/strong\u003e. No repair, no charge.\u003c\/p\u003e\n\u003ch3\u003eHow long does the entire process take?\u003c\/h3\u003e\n\u003cp\u003eFrom the day you ship to the day you receive it back is usually \u003cstrong\u003e6–10 days total\u003c\/strong\u003e (including transit time).\u003c\/p\u003e\n\u003ch3\u003eWhere are repairs performed?\u003c\/h3\u003e\n\u003cp\u003eThis work is done in-house at our \u003cstrong\u003eTowson, Maryland\u003c\/strong\u003e facility.\u003c\/p\u003e\n\u003ch3\u003eWhat warranty do you offer?\u003c\/h3\u003e\n\u003cp\u003eAll cloned EIS units include a \u003cstrong\u003e90-day warranty\u003c\/strong\u003e covering workmanship and functionality.\u003c\/p\u003e\n\u003ch3\u003eDo I need to program anything after installation?\u003c\/h3\u003e\n\u003cp\u003eNo additional programming is required. Once you receive your cloned module, simply reinstall it — your keys and immobilizer data remain synchronized.\u003c\/p\u003e\n\u003ch3\u003eCan you clone from a water-damaged EIS?\u003c\/h3\u003e\n\u003cp\u003eYes, in many cases we can extract the data even from partially damaged units. If recovery isn’t possible, we’ll refund your payment.\u003c\/p\u003e\n\u003ch3\u003eIs this service compatible with Smart Keys or Keyless-Go?\u003c\/h3\u003e\n\u003cp\u003eYes, our cloning process supports both \u003cstrong\u003estandard and Keyless-Go\u003c\/strong\u003e Mercedes-Benz systems.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e🧭 Why Choose Us\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSave hundreds over dealer EIS replacement costs\u003c\/li\u003e\n\u003cli\u003eFast 3-business-day turnaround after receipt\u003c\/li\u003e\n\u003cli\u003eFree return shipping within the U.S.\u003c\/li\u003e\n\u003cli\u003eBench-tested for guaranteed functionality\u003c\/li\u003e\n\u003cli\u003eExpert Mercedes electronics specialists\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eOrder now and get your Mercedes back on the road quickly — no reprogramming, no hassle!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Module Medics","offers":[{"title":"Default Title","offer_id":42785815625817,"sku":null,"price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0647\/0510\/1913\/files\/Mercedes-Benz-EIS-Electronic-Ignition-switch-cloning-service-eBay-10-27-2025_12_57_PM.jpg?v=1761584580","url":"https:\/\/www.modulemedics.com\/products\/mercedes-benz-2000-2013-eis-ezs-ignition-switch-repair-cloning-programming","provider":"Module Medics","version":"1.0","type":"link"}