{"title":"Ignition Harness","description":null,"products":[{"product_id":"034-701-0004-034motorsport","title":"HARNESS,1.8T COIL REPAIR","description":"\u003cdiv id=\"product.info.description\" class=\"data item content\" role=\"tabpanel\" data-role=\"content\" aria-labelledby=\"tab-label-product.info.description\" aria-hidden=\"false\"\u003e\r\n\u003cp\u003eThe VW and Audi 1.8T engine, due to the proximity of the coils on the valve cover near the exhaust, suffer from harness degredation.  This is surprisingly common on cars less than 5 years old.  The dealer recommends replacing the entire engine harness for over $1200.\u003c\/p\u003e\r\n\u003cp\u003eOur harness solution uses automotive grade wiring and harness building materials designed to withstand years of abuse and offer an affordable, elegant solution.\u003c\/p\u003e\r\n\u003cp\u003e12 wires need to be cut and crimped onto the OEM wiring, simply assemble the DT connector and plug the rest in.\u003c\/p\u003e\r\n\u003cp\u003eInstallation instructions can be found here: \u003ca href=\"https:\/\/www.034motorsport.com\/docs\/1.8T%20Coil%20update%20install%20instructions.pdf\" target=\"_blank\" rel=\"noopener\"\u003e1.8T Coil update install instructions.pdf\u003c\/a\u003e\u003c\/p\u003e\r\n\u003c\/div\u003e\r\n\u003cdiv id=\"tab-label-fitment_guide\" class=\"data item title\" tabindex=\"0\" role=\"tab\" aria-labeledby=\"tab-label-fitment_guide-title\" data-role=\"collapsible\" data-collapsible=\"true\" aria-controls=\"fitment_guide\" aria-selected=\"false\" aria-expanded=\"false\"\u003e\u003c\/div\u003e","brand":"034Motorsport","offers":[{"title":"Default Title","offer_id":49296141090990,"sku":"034-701-0004","price":225.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/4017\/8862\/files\/034-701-0004-1.jpg?v=1790056239"},{"product_id":"ignition-ground-harness-kit-w-hardware-and-terminal-tool","title":"Ignition Ground Harness Kit with Hardware and Terminal Tool","description":"\u003cp dir=\"ltr\"\u003eOur Ignition Ground Harness Kit is designed by DAP (Deutsche Auto Parts) for Volkswagen and Audi 1.8T and 2.0T Gen 3 and Gen 4 engines. It replaces the four individual ignition coil ground wires with one harness and includes the hardware and terminal tool needed for factory looking installation.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eOn the factory setup, each ignition coil has its own ground wire with a metal eyelet.  This is attached to a ground stud at each ignition coil. Because a special thin wrench is required to properly remove them, these eyelets are often damaged during service work.  \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eAll four grounds are combined into one harness with a single ground point located on the passenger side of the valve cover. New hardware is included to finish the installation.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cstrong\u003eWhat’s included with your Harness Kit \u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eGround harness (connector varies by selection) \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eM6 x 1.0 x 45 mm bolts \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eIgnition terminal tool\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cstrong\u003eWhy These Grounds Fail\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eDamaged or broken ground eyelets (installation errors)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eStripped threads in the valve cover (installation errors)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eAged or brittle ground wires\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cstrong\u003eHow to Tell If Your Grounds Have Failed\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003eA problem with the ignition ground can be tricky to diagnose because the symptoms can look a lot like a bad ignition coil. Before replacing another coil, it is worth checking the grounds and connectors.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eSome common symptoms include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eMisfire that comes and goes or moves between cylinders\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eRough or uneven idle\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eStumble or hesitation during acceleration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eCheck engine light with random or cylinder-specific misfire codes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eReplacing an ignition coil without resolving the misfire\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eChecking the grounds is fairly simple. Remove the engine cover and inspect the ground connection at each ignition coil. Look for bent or cracked eyelets, damaged wires, or anything that does not look like it is sitting flat and secure. Check the fastener as well. If it turns without tightening, the threads may be stripped.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThis is also a good opportunity to inspect the ignition coil connectors. Look for broken locking tabs or other damage, and make sure each connector locks securely onto the coil. When properly installed, the connector should click into place and stay firmly attached.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cstrong\u003eWhich Connector Do You Have, 4D0 or 8K0?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003eThe VIN will not be helpful in identifying your connector style.  You are going to have to physically check the connector yourself to verify which style you have.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0748\/4017\/8862\/files\/dap-998-110-kit-compare_pic_3.jpg?v=1791908423\" alt=\"Ignition Ground Harness Kit with Hardware and Terminal Tool\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eWhile you have the connector unplugged, take a look at its condition. If the locking tab is broken or the housing is cracked, it is a good idea to replace the connector while everything is already apart. We stock both styles individually:\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003ca href=\"https:\/\/www.shopdap.com\/4d0-971-994.html\"\u003eIgnition Coil Electrical Connector 4D0971994\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003ca href=\"https:\/\/www.shopdap.com\/8k0-971-994.html\"\u003eIgnition Coil Electrical Connector 8K0971994\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eThe terminal tool is an important part and included in the kit. A small screwdriver or pick may seem like it will work, but it is easy to damage the connector in the process.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cstrong\u003eInstallation Tools\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/www.shopdap.com\/mqb-ignition-coil-10mm-flat-wrench.html\"\u003e10 MM Flat Wrench for MQB Ignition Coil Nut\u003c\/a\u003e (or needle nose pliers)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e10 MM regular wrench\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eIgnition terminal tool (included)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003ePocket flathead screwdriver\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/www.shopdap.com\/vw-audi-small-pick-set.html\"\u003ePick \u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/www.shopdap.com\/vw-audi-socket-ratchet-tool-kit.html\"\u003e10 MM deep socket with rachet\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003ca href=\"https:\/\/www.shopdap.com\/vw-audi-torx-sockets.html\"\u003eT30 Torx\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003eThis is a DIY- friendly job. If this is your first time removing the coils, give yourself an afternoon. Work on a cold engine. It is also a good idea to take a few photos before removing anything, especially the wire colors and their positions if you are replacing the connectors too.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eGetting the Old Grounds Out\u003c\/p\u003e\n\u003col\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eRemove the engine cover\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eTake the ground nut off at each coil, while holding the bolt with the thin 10mm flat wrench or needle nose\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eUnplug each ignition coil connector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eOpen the wiring conduit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003ePull the purple lock tab out of each connector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eRelease each ground wire from terminal with the included terminal tool\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp dir=\"ltr\"\u003ePutting the New Harness In\u003c\/p\u003e\n\u003col\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eLay DAP ground harness in conduit and ensure each wire and terminal end lines up with an ignition coil connector.  Ensure the eyelet is facing down and lays flat under the coolant pipe on the drivers side of the valve cover.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eInsert each new terminal into the position the old ground wire came out of\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eListen for the click, then tug the wire to confirm it is seated\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eReinstall the purple secondary locks\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eFit the ground eyelet under the coolant pipe and tighten (10nm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eInstall and tighten the new M6 bolts at each coil (10nm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eReinstall the engine cover, reconnect the battery, start the car and check for misfires\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp dir=\"ltr\"\u003eIf you still have a misfire check the following\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eYou may have an alternate cause of misfire (ie Ignition Coils, Spark Plugs, Fuel Injectors, etc)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eIgnition coil connectors are fully seated and locked\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eGround terminals are fully seated in the connectors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eSpark plugs are properly installed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eGround eyelets are making good metal-to-metal contact\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eGround bolts are tight\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cstrong\u003eDIY Guides\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=OYKRb2cfhQI\"\u003e Fixing MK7\/MK8 2.0T Ground Wires Forever - Video DAP\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=lrs8-KtJGus\"\u003eHow to Replace an Ignition Coil Connector - Video DAP w Humble Mechanic\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eThis kit is not compatible with the 1.4T engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eAudi\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eA3 8V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eA3 8Y\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eTT \/ TT-S MK3\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003eVolkswagen\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eArteon 2019 to current\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eAtlas 2018 to current\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eBeetle 2012 to 2017\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003ePassat B7\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eTiguan 2018 to current\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eMK6 Jetta and Jetta GLI\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eMK7 GTI \/ Golf \/ Golf R\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eMK7 Jetta GLI\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eMK7 Sportwagen \/ Alltrack\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eMK7.5 GTI \/ Golf \/ Golf R\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003eMK8 GTI \/ Golf R\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cstrong\u003eWhy DAP\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cstrong\u003eDesigned by DAP.\u003c\/strong\u003e We developed this kit to eliminate the easily damaged factory ground eyelets and make future spark plug and ignition coil service easier. \u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cstrong\u003eInstallation videos.\u003c\/strong\u003e We filmed the installation on an actual car so you can see the process before you start.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\"\u003e\n\u003cp dir=\"ltr\" role=\"presentation\"\u003e\u003cstrong\u003eEverything you need to do the job.\u003c\/strong\u003e We stock both ignition coil connector styles, along with coils, spark plugs, and the tools needed for the job.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cstrong\u003eRelated Parts\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003ca href=\"https:\/\/www.shopdap.com\/06k-905-601-d.html\"\u003eGenuine OE Spark Plug for 1.8T \/ 2.0T EA888.3\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003ca href=\"https:\/\/www.shopdap.com\/06q905601a-vw-audi.html\"\u003eGenuine OE Spark Plug for 2.0T EA888.4\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"ShopDAP","offers":[{"title":"4D0","offer_id":67685532991662,"sku":"DAP-998-110-4D0","price":64.99,"currency_code":"USD","in_stock":true},{"title":"8K0","offer_id":67685533024430,"sku":"DAP-998-110-8K0","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/4017\/8862\/files\/dap-998-110-8k0__1.jpg?v=1791908423"}],"url":"https:\/\/www.shopdap.com\/collections\/ignition-harness-90265.oembed","provider":"ShopDAP","version":"1.0","type":"link"}