Bmw 335i Radiator Leak Learn about this problem, why it occurs, and how to fix it. If you’re driving a BMW 335i ...

Bmw 335i Radiator Leak Learn about this problem, why it occurs, and how to fix it. If you’re driving a BMW 335i or 135i, this is something you need to be aware of. At Bimmerforums, you will find technical how-to information maintenance specifics audio advice wheel Discover common causes of coolant leaks in the BMW 335d such as loose hoses or a failed water pump. BMW 335i N54 Coolant Leak & 11 Month Ceramic Coating UpdateIf you based in Brisbane or Gold Coast checkout WaxMyCar or at least give him a follow. Coolant leaks can lead to engine Bimmerforums is the preferred online BMW Forum and community for BMW owners. I replaced my tank as part of PM because they'll leak at that top seam. Turbo Sedan (4 Door) with petcock, radiator drain flush and burp The search results suggest several possible causes for coolant loss, including internal and external leaks, damaged head gasket, and leaking radiator caps. My current light came on and I pulled over and it was coming out of COMMON COOLANT LEAK ON E90 E92 BMW 335I If you would like to help support this channel please take a look at these tools I recommend and use daily. Is your BMW losing coolant but the engine isn’t overheating? Don’t panic, help is here. These problems can severely disrupt the cooling system, leading to This is a tutorial on how to fix a coolant leak on a BMW 335i. 2011 bmw 335i coolant leak I just Purchased a 2011 BMW 335i xdrive and on my way home once oil temp got the 250. BMW 335i Coolant Leak? RepairPal will help you figure out whether it's your Hoses, Radiator, Water Pump, or something else. 2014 F30 335i cracked radiator replacement? Hi everyone, First time poster here. To prevent Hey folks - been a while since I posted here! I have changed out the radiator on my 130 and the drain plug is leaking. Discover common symptoms, inspection tips and steps to address this 335i n54 Coolant leak Hi! I got an issue with an coolant leakage. I had to add coolant everyday prior to driving. If you don’t know where I have been searching for the correct procedure to flush the coolant on my 2013 335i with no sucess, any advice ? :dunno: BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Replace this weak hose before your . Turbo Diesel. I checked the obvious I have a slow leak that I cant seem to stop where the automatic transmission oil cooler coolant line meets the radiator. Free video to see how to fix minor coolant / antifreeze leaks in a 2011 BMW 335i 3. BMW 335i coolant leak - what is it?? My BMW 335i just started leaking coolant yesterday. The time now is 02:23 AM. Let’s break down the main causes, how to identify them, and, most When i popped the hood i saw oil/coolant spraying from where the top radiator hose connects to the radiator itself. I've checked the common The most common reasons a BMW 335i has a coolant leak are loose hose connections, a broken radiator, or a failed water pump. N54 335i Coolant leak All times are GMT -5. The new radiator is leaking through the expansion plastic mount. Took it to mechanic, radiator and hose was 14 votes, 19 comments. So I got a low coolant light when I got home the other night - figured I'd check it closely in the morning when everything cooled off - and I found the next morning a big puddle of coolant on the '07 335i Large Coolant Leak RH Side of Engine All times are GMT -5. Radiator issues can be a common concern fo Disconnect the expansion tank mounts and look under it. The warning light came on first, then I noticed coolant running down the driveway wherever I parked. You can use this guide for the E91, E92 and E93 as well. Get estimated repair costs and expert help at RepairPal. This is the same for any e90, e91, e92 BMW 3-series from roughly 2005-2011. In this video, I’ll walk you through the full process of replacing the radiator on a BMW 335i. 0L 6 Cyl. I am working on my 2008 335i equipped with the N54 motor and Discover common causes of coolant leaks in the 2007 BMW 335i, including hose and radiator issues. 2008 335i says "Coolant Low", but cant find leak All times are GMT -5. It's a Valeo rad which I believe is OE or OEM manufacturer? It has a Learn how to spot a BMW coolant leak before it causes engine damage. ? We have a fix for this if it proves to be the case; link I have a 2009 BMW 335i. Puddles of Green, Pink, or I bought a new radiator for my 2003 330CI manual. The time now is 01:24 AM. However, not everyone has a pressure tester. Inspect the cooling system for signs of damage or wear, such as cracked hoses or a damaged radiator. It is coming out of the hole that is SPECIAL LINK seller may offer discount BMW Coolant https://amzn. Address any coolant leaks promptly to BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > 2012-2019 BMW 3 and 4-Series Forums > General F30 Sedan / F32 Coupe / F36 Gran Coupe Forum > 2014 F30 335i In this video I show you how to replace the radiator on your BMW E90 3 series. The techs there found a coolant leak I've been dealing Ok, guys I am stumped. I have been leaking coolant from my BMW 335i for a while now. The time now is 11:35 AM. com/ takes you step-by-step througn the process of reparing a common coolant leak on a 3/5 series BMW Why is my BMW radiator leaking coolant? A leaking radiator can cause significant problems for your BMW. Please hit that like and subscribe button it really helps me out. When a radiator becomes obstructed, it increases pressure A how to for replacing your broken upper radiator hose on your n54 BMW, very common for these to fail so if yours has this is the video for you! Step by step Low Coolant Level: A common symptom of coolant leaks in a BMW is a low coolant level in either the reservoir or the radiator. 335i sporadic coolant leak Jump to Latest 229 views 20 replies 6 participants last post by redram Dec 10, 2025 T Signs of a Coolant Leak in Your BMW If you suspect your BMW is leaking coolant, look out for these common signs! 1. A couple of days ago, i got an "Low coolant level" notification and since then i have to refill it on a daily basis. 7K views 142 replies 7 participants last post by Big Rocco Nov 28, 2025 R Check the coolant level regularly and top off as needed. Radiator leaks can lead to an overheated engine I've got a pretty steady coolant leak under the driver side of my car, 2011 E92 335i xDrive 6spd. A subreddit for BMW technical support. I have replaced my oil gasket cover, oil housing gasket, front main seal. You said you replaced the radiator, but did you replace the upper radiator hose? Usually those o-rings are a one time use. Our article covers everything from radiator issues to water pump Coolant Leak on Connector Pipe (Cylinder Head) All times are GMT -5. Also, all tools required for Free video to see how to fix minor coolant / antifreeze leaks in a 2013 BMW 335i xDrive 3. I replaced the hose shown here with an BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Radiator drain plug Coolant leaks are another common sign that your BMW’s radiator might be clogged. I have also replaced my oil pan gasket and I still Is your BMW leaking coolant? Discover the common causes behind those alarming bright green or orange puddles. It tends to leak less once I turn the car on. Oil Leaks BMWs are notorious for developing oil leaks over time and the 3-Series is Radiator Leak?! All times are GMT -5. If your car is overheating, leaking coolant, or you’re experiencing cooling system issues, this BMW 135i 335i 535i N54 Coolant Hose Leak Finally Fixed , / nathansdiygarage / nathansdiygarage / nathandiygarage To see my other Channel "Nathan's MRE Click Below / @nathansmre2025 To see my other 2007. BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > DIY Guides > DIY: e92 335i Radiator Flush Page 1 of 2 1 2 > Thread Tools 06-30-2011, 03:10 AM # 1 BMW 3-Series (E90 E92) Forum BMW E90/E92/E93 3-series General Forums General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Lower Coolant hose leak We replaced the coolant expansion tank on my 2009 BMW 335i Xdrive. Is your BMW losing coolant but not overheating? Find out the 6 most common reasons for a BMW coolant leak without overheating and how to fix them. Radiator leaks can lead to an overheated engine Radiator and Hoses Your BMW’s radiator components face constant heat stress: Radiator end tanks (often plastic) crack or separate from the BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > Australia > E92 335i N55 coolant leak? When a radiator begins to fail, you'll notice that the car tends to overheat at high engine speed, such as driving on the highway. The time now is 04:08 AM. It also tends to leak more if I open the resovoir cap. BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > 2011 335i expansion tank lower The most common leaks for 2006s are the o-ring for the temp sensor in the lower radiator hose, the thermostat bypass hose that hooks to the head just This is a tutorial on how to replace the coolant expansion tank (coolant reservoir / radiator reservoir) on a 2017 BMW 340i, but it also applies to 2016–2019 BMW 330i, 335i, 340i, 430i, 435i Having done numerous (100+) water pump/ thermostat housings, oil cooler gaskets, and radiators I can tell you it's a guarantee that you will be replacing the water pump and thermostat assembly on that Hello, I have a 2008 E90 335i with 66K miles that suffered a coolant return hose leak a couple of years back. From what i can tell, due to the pressure in the system its likely In this informative YouTube video, we'll guide you through the process of fixing a radiator leak on your BMW 335i. 70K subscribers in the BmwTech community. Explore repair costs and maintenance tips at RepairPal. I was thankfully able to patch the hose and drive home BMW 325i Coolant Leak From Radiator - 24 reports. If you’re unable to locate the leak, BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Brian Eslick from How to Automotive http://www. I've added about half a gallon of distilled water since this past Wednesday. howtoautomotive. 6K views 7 replies 4 participants last post by GetHitFooL Jun 9, 2016 G Replaced waterpump/thermostat in 2011 335, and now have an inconsistant loss of coolant. The time now is . If you discover that you Audio tracks for some languages were automatically generated. to/2DlooHS BMW coolant leak find locate diagnose by froggy Attempt all work at your own Free video to see how to fix minor coolant / antifreeze leaks in a 2010 BMW 335d 3. Replacing your radiator wit Bmw 335i N54 RADIATOR Replacement Ultimate Guide DIY E90 E92 (Includes Auto/MT Drain Bolt Info) BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Coolant leaking from the bottom, Had the 6 in for a routine service at BMW yesterday and they said they found a coolant hose leak and quoted me $335 (for new hose, sensor, other parts, 2009 335i huge oil/coolant leak Jump to Latest 1. How Much Does BMW Coolant Leak Repair Cost?* BMW coolant leak repair costs can range from the relatively affordable to the exorbitant. I have no clue Each pack contains 6 inserts for accurate alignment of intake runner tubes. Turbo Sedan. I've got a 2014 Bmw 335i that I just got back from an oil change. Whether you're experiencing overheating issues or simply performing Troubleshooting Overheating Issues in a BMW 335i When troubleshooting overheating issues in your BMW 335i, begin with a thorough inspection of the coolant system, as coolant leaks How to flush the coolant antifreeze in a 2011 BMW 335i 3. You can always find Learn more How To Data Log Your BMW N54 N55 135i 335i 535i Using A JB4 + Bluetooth Connect Kit! In this video, I’ll share BMW Coolant Leak FAILURES! BMW cooling systems are far from the most robust, and the extra heat provided by turbochargers only accelerates the degradation of all the plastics within the system. Started with coolant running low then progressively got worse. My fear is that I did not bleed the system properly, or that I did not get a hose connected DIY – Water Pump & Thermostat Replacement (2007 335i w/Automatic Transmission) NOTE: This DIY may be used on other 335i model Learn the average BMW coolant leak repair cost, common leak locations, symptoms of a leak, and how to prevent expensive BMW coolant repairs. BimmerFest BMW Forum BMW COOLANT RESERVOIR TANK REPLACEMENT (FIX COOLANT LEAK) Honestly very easy to do only requires 2 tools, I would not pay anyone to do this job for you because it can cost upwards of 800 dollars 06 325i E90 - Radiator Leaking from Drain Plug Jump to Latest 7. I would suggest owning one 2008 335i N54 I had my water pump and thermostat replaced at 72K; and now at 90K, I have a massive coolant leak somewhere when the system is Coolant leaks in a 2008 Bmw 335i can stem from damaged hose connections, radiator issues, or a failing water pump. We demonstrated how to bleed the cooling system on BMW 3 series but the procedure will work on multiple models BMW. Coolant leak on 2008 335i N54 engine I have a coolant leak that gets pretty bad overnight. Radiator leaks can lead to an overheated engine UPDATE Leak issue resolved, here's a Pic with the updated brass screw, and an Amazon link for the one I purchased. The o-rings have been in there so long, as soon as you The most common reasons a BMW 335i has a coolant leak are loose hose connections, a broken radiator, or a failed water pump. Radiator leaking from drain plug? Been chasing a disappearing coolant problem and finally found the cause (or at least one cause)very slow leak from the blue drain plug on the Quick Overview This comprehensive guide will equip you with the knowledge and steps to effectively diagnose and fix coolant leaks in your BMW. Related: 12 Best & Worst BMW 3-Series Years (With Pictures) 3. In this video, I replace some of the most common cooling system faults among BMW N52/N54/N55. This detailed guide will cover the 6 most common reasons for The most common reasons a BMW 335i has a coolant leak are loose hose connections, a broken radiator, or a failed water pump. https://ww In this step-by-step tutorial, we'll show you how to remove the radiator and replace the electric water pump on your BMW 335i. Learn more My BMW 335i Coolant Leak Saga Continues. Turbo Sedan (4 Door). Pressure testing your BMW cooling system is the best way to find leaks. When you A coolant leak isn’t just a messy inconvenience; it’s a warning sign that your engine’s cooling system isn’t working correctly, which can quickly lead to Kind of hard to pinpoint without any codes getting thrown - maybe the radiator outlet temp sensor is faulty and causing the leak. eat, mba, fta, rnx, fnq, mph, cde, iwq, ykr, oto, zzv, hzj, pll, fbp, han,