Water pump not pumping water through engine

Hope this helps

Sludge is engine oil. Add lost power and = you have blown head gasket or cracked head. Sorry to convey such bad news.

HIYA YOU CAN DO THIS ONLINE YOU WILL NEED TO TAKE THE UNIT OUT TO READ THE SERIAL NUMBER SHOULD COST ABOUT TEN TO FIFTEEN POUNDS RADIO CODES UK BEST SITE ON THE NET OR YOU COULD GO TO A DEALER

it looks like an interior light or if fitted an undef bonnet light check to see what lights are not working and check for earth if not reply an i can investigate if you have more info,just a thought its not a LPG conversion is it ?

this exact problem on a megane coupe is caused by a small air pipe that connects to a 2 inch wide black box that is located under the bonnet near the windscreen on the passangers side. the zigzag light indicates an electrical fault (in this case lack of compression and will affect your revs) if you find this pipe and it has snapped off. the reason for this may be that your engien is lose and moves. grab the engien with 2 hands and see if you can wobble it with allot of play. if so your engien mountings need replaceing. you may also experiance juddering in low gears

This being a diesel, lack of compression is your worst enemy. These symptoms sound like a blown head gasket. Check your coolant for signs of oil, and check your oil for signs of coolant. (oil will be milky looking) Also indicative of a head gasket problem is an oil or coolant leak from the engine as well. If you see no evidence of the above, have a compression test done, and it should show up.

yes its the pump torque unit you need to replace your pump.sorry

Does anyone know the torque settings for the following Cam box(bolts), head bolts & crank shaft, the megane scenic is 2001.

is the oil/water a milky colour? if so, then yes, your head gasket has blown