2010 Volkswagen Jetta 2.5 "sludge coolant" Questions

If it's crack between the oil and coolant gasket holes, you will have coolant entering the crankcase and your oil will have brownish sludge. Look for signs of coolant mixing with oil on your dipstick

did you replace with VW rated G12 coloant? Very Important! - You can't use over the counter coolant - it'll cause sludge in your system. You have to use G12... Hope this helps! Please rate/vote! Thanx

...coolant filler cap for similar sludge deposits. 3 check around the top of the cylinder block for signs of oil or carbon "blow outs". Do a cylinder compression test on all cylinders and compare the ...

...sludge mess. G-12 doesn't mix very well with regular off the shelf coolant. If you google VW G-12 it will give you an idea about what I'm talking about. You won't find G-12 in a store - you have to ...

...sludge in coolant tank Oil has obviously leaked into my coolant reservoir bc of the oily brown sludge mixture. My oil tank is bone dry so this is why I am sure its a leak from one to the other. Temp ...

...SLUDGE. COOLANT WAS IN THE ******. A MONTH AFTER THE ****** WAS REPLACED CAR IS BACK AT DEALER WITH SLUDGE IN THE COOLANT BOTTLE AND ENGINE. DEALER SAYS IT IS NOT THE HEAD GASKET BUT HAS NO IDEA WHAT ...

...sludge in the coolant in my l997 Olds Aurora/ How sserious is it? pink sludge --very serious it is a failed transmission oil cooler allowing transmission oil into the cooling system Oil and water do ...

What ha caused the sludge in my coolant ? Its a l997 Olds Aurora. How serious is sludge in the coolant? Could work its way into radiator and clog it up resulting in overheating.

sludge in the coolant but it shows no coolant in the oil. I removed the thermostat and flushed out the cooling system for over an hour to clean it out. In nless than 1500 miles it is back.It cloggs up

...coolant causing sludge problems... a pressure test was done on the coolant system and after a complete professional flush the system ran sludge free for a short period of time but now is occurring ...