Bosch 0221504470 Ignition Coil for Select BMW Cars - 6-Pieces

Wonderful product... Saved the day with a coil that would drop out only under heavy load, pulling a 4,000 lb. cargo trailer 1,550 miles from Florida to Wisconsin, with a 6 cylinder, 115,000 miles, naturally aspirated, 2008 BMW X5 3.0si.No fault codes, even the stupid Stealer could find nothing wrong, $135 later!Vehicle would pull heavy trailer like a V8, charging up the on ramps, around town, or no trailer would go any speed on highway...no codes, no silent codes, idled perfect, but upon reaching 60-62 MPH, simply would not go any faster! Not even floored! No missing, no studdering, just like a governer.COILS WITH 100,000 plus miles should be -CONSIDERED A MAINTENANCE ITEM- AND REPLACED AT OR ABOUT 100k miles ••• AS A FULL SET•••.These coils I purchased shown here... were 100% correct Bosch, current dated (not old left over stock). AND IMMEDIATELY CURED THE PROBLEM!!! We had come home at 60-62 with the trailer empty (still 2,000 lb., tandem axle Haulmark) and the trip took forever and ate gas like no tomorrow.THIS TRIP UP... with a fully loaded 7x14 cargo trailer est., 4,000 lb., + was a joy, and held 65-70 with ease.Yes... The older 6cyl. X5 CAN PULL A GOOD SIZED BOAT OR TRAILER, the issue beyond about 3,500 lbs., is that the "tail starts to wag the dog". Aka, vehicle becomes touchy and unsafe. But 10 miles to the lake...or a load of furniture across town... no problem!!! I installed a Curt Hitch on the X5, also purchased here at Amazon. Easy install, but use the genuine BMW wiring harness. You must have an electric brake controller also sold right here. The BMW BRAND is of great quality and function.Good Luck out on the Road! •BUY THESE COILS•... AN OUTSTANDING PRICE, I'm tempted to buy a another set for my wife's 2002 330i.Steve in Sebastian

It was a pre-owned item, discounted accordingly but I took a chance. I'm on a budget and didn't want to spend OEM or OE new prices, and this item was selling for less than aftermarket prices with a OE name Bosch. I nor the seller know if this will work with my car, a pre-LCI 2006 BMW 330i E90. I really just needed one or two of the plugs as I was getting a misfire on one cylinder. I wasn't sure if it was the ignition coil going bad or if it was just a loose connection with the coil plug. I figured it's just better to replace it all since I just got the car and slowly doing preventive maintenance (ie replacing all the brittle aging plastic parts in and around the engine), so this wouldn't be out of line knowing the mileage of the car and the history. The package came, I inspected it, looks new to me, like probably the same situation I was thinking-somebody bought it, opened it to install and it wasn't the right coils for their car and returned for a refund and the seller had to resell at a discount since it's not new. Well, after like 3 weeks now, I can say, my car runs great. Smooth, no more misfires and check engine lights, I drove hundreds, probably a thousand miles now and not one ignition related issue. Thank you to the seller and Amazon. I saved money and the ordering and delivery time was fantastic.

About a week ago, I bought a used 135i, and 2010 with 45,000 miles. The spark plugs were due to be replaced. An independent garage quoted me $380 to replace just the plugs. On the way there for a 2nd visit on a cold morning, one cylinder didn’t fire at all. They read the fault codes for me and told me it was #5. They also told me that the ignition coils are prone to fail in these engines (N54), and recommended replacing the ignition coils at the same time as the plugs, which is understandable given that you have to remove the coils in order to remove the plugs. By ordering the coils and plugs here, the six coils cost me about $160, and the six plugs about $40, or right around $200 for both the coils and the plugs. The independent garage wouldn’t have charged me extra labor for swapping the coils, but after looking around, I estimate that they would have charged me about $500 for the six coils. The total cost, for replacing the plugs and the coils including the labor, would have been at least $750, probably more like $900. Thus, I saved between $550 and $700 by doing this job myself. It took me right around two hours. Oh, I also bought a new spark plug wrench to add to my collection, about $15.When replacing plugs there is debate over whether to use anti-seize compound. I like the idea of using anti-seize, but many people who use it probably don’t realize that it renders the torque specification entirely moot. The reason is that there is less friction in the threads, which means a greatly reduced torque reading relative to a given amount of force compressing the little metal gasket on the spark plug. Or, for a given amount of torque, the force compressing the metal gasket will be substantially greater than it is supposed to be. Thus, when using anti-seize, you have to ignore the torque specification and simply thread the plug in by hand until it stops firm, then put a socket and ratchet on it and turn it an additional 60 to 90 degrees. The package the plugs came in had a little drawing that showed 90 degrees, along with the torque spec. But I found that it took way too much force to turn them 90 degrees, and given that I was using anti-seize, I would say that 60 degrees might be enough, and that 75 degrees is certainly enough to get a tight seal. When applying the anti-seize, do it the night before, with good indoor light, and take your time. I used a toothbrush, not an old one but one from the collection of toothbrushes that the dentist gives away. I applied a small dab of anti-seize on the threads near the firing tip of the plug, and worked it in gently with the brush, starting near the firing tip and working back toward the other end. If the optimal amount of anti-seize is used, you’ll run out of anti-seize before reaching the gasket, and will have to work some more of it onto the brush in order to coat the threads fully to the gasket. But be very careful not to get any on the gasket, because you need a good electrical contact between the gasket and the cylinder head. If you do it this way, you will not have any problems at all, and you’ll have the peace of mind of knowing that when it comes time to change the plugs again, the old plugs will come out effortlessly. One tip about the coils: before you attach the wiring harness connector, flip the pivoting latch mechanism down so that you can give the coils a good firm press, to insure that they are pressed fully onto the spark plugs.

Excellent Performance I am pleased with price smooth performance ++++++😀