Best to check the coolant for hydrocarbons, or barring the ability to test for that see if it smells of gas/oil. If the coolant is just as it should be other causes could be a bad PCV valve or poorly sealing oil cap/dipstick. And I recommend you take help from the BMW community, the E46 is a classic legend and all the issues are known The German Auto Solutions bar Cooling System Cap uses % original BMW internal components that have been recalibrated to vent at bar. This top of the BMW doesn't make special coolant (or special anything for that matter) you just have to be sure whatever you pick up is phosphate free. The cooling system is the
Radiator cap is tight | E46 Fanatics Forum
Best was 38 MPG 82 i euro Saphire Blue Met/Blue Leather RIP 79 euro Green/Green RIP 79 Silver/Black - The first one that got it all started with a 2 bar cap, coolant boils at about F, with a bar cap it's around F. I think BMW uses 95 degree t-stats, which equates to about F. I'm guessing for normal everyday driving The arrows are probably there to help remind someone to fully tighten the cap. When you experienced that tightness during unscrewing the cap, maybe something got out of alignment, like a ***;stop***;. I think I would tighten the cap all the way, and not worry if the arrows align, knowing that you fully installed it The sensor does not make contact with the coolant. There is no O ring on the sensor. Lastly, the washer fluid sensor has the same (doesn't make contact with the washer fluid either) part number as the coolant level sensor. Joe. 03 E S62B50 w/69K. 00 E46/4- M52TUB25 w/K. 99 E36/8- S52B32 w/64K (Soon) =) The German Auto Solutions bar Cooling System Cap uses % original BMW internal components that have been recalibrated to vent at bar. This top of the line coolant cap is CNC machined from aluminum alloy, color anodized to prevent corrosion and enhance beauty, then laser etched with the caps specification Posts · Joined #18 · Feb 3, After 4 and half hours I finally just finished replacing my expansion tank, water pump, thermostat and hoses as well as lower hose temp sensor and fluid level sensor under the exp tank. Now the low coolant indicator light is on the dash Mark Armstrong. June 7, BMW Coolant – What to Get and What to Avoid. Coolants, or antifreeze as it’s sometimes referred to, is a fluid that plays an integral role in E46 Bar Coolant Cap DIY. Valve diameter = 14mm, which gives a pressure area of cm2 = square inches. To make release pressure Bar. Pressure on valve = x = lb = kg. Shorten spring to mm gives a compressed force of kg Posts · Joined #15 · Jun 25, If the hose is flat at least you know your cooling system can hold a vacuum - an indication there are no leaks. Take the cap off - let the hose expand - check the coolant level - don't over fill it -
BMW E46 - Yellow gunk around engine oil cap. Should I be …
The extra coolant in your expansion tank is now in the engine block and lines. Allow the engine to cool off now - this will take several hours depending on the outside temps. 9. Open the cap (when engine is cold) and verify coolant level Spread the love. Engines used in the BMW E46 models hold about liters of ethylene glycol- water mix, while M3 E46 models hold 10 liters. In this article, I will go over the steps involved with replacing the engine coolant on the BMW M52 and M54 engine. Table of Contents show Green is backwards compatible with blue and can be used on cars before However, BMW does not advise using the older blue formula on cars made after January, The green coolant includes silicates, which add extra protection for cooling internals but the coolant must be replaced every two years."