Auto Parts Search
Volkswagen Beetle Engine >> OIL IN COOLANT
Oil in Cooling System on
VW 1.5L & 1.6L Diesel Engines
AERA members have reported instances of engine oil in the cooling system on VW 1.5L diesel engines. According to AERA sources, the problem is related to a crack in the cylinder head bolt hole located near the oil gallery feeding the cylinder head.
The oil feed gallery in the block is located on one side of the center head bolt hole and a coolant jacket is on the opposite side of the bolt hole. Pressurized engine oil is diverted through a slot in the head gasket and is feed up the side of the head bolt to the cylinder head. The oil also follows the bolt back down to the bottom of the bolt hole. Should the crack in the head bolt hole extend to the coolant jacket, oil can mix with engine coolant.
This problem is generally found on engines equipped with 11mm head bolt holes. Later design engines utilize 12mm head bolts and do not exhibit this defect. At the time of this writing no successful repair procedure is available.
The AERA Technical Committee
Looking for replacement Volkswagen Beetle engines? Visit our online Rebuilt Engines Store. Need to fix your Volkswagen Beetle engine? Access here the comprehensive online repair guide for your Volkswagen Beetle engine. Click Here to find a used Volkswagen Beetle engine.
Shop online for auto body parts, engines, wheels, lights...
|2002 Volkswagen Beetle Bumper Grille, Front, Mesh style; Without fog light holes; A high quality, direct fit OE replacement bumper grille; Backed by 1-year, unlimited-mileage warranty..||$57.25|
|2004 Volkswagen Beetle Turn Signal Light, Driver Side, Bulbs not included; Without fog light; DOT and SAE approved; A high quality, OE replacement turn signal light; Backed by 1-year, unlimited-mileage warranty..||$13.74|
|2013 Volkswagen Beetle Passenger Side Front Signal Light, Passenger Side Front Signal Light; To Production Date 06/16/2013, , .||$64.50|
|2005 Volkswagen Beetle L4, 1.8 L, 107 CID Rebuilt Engine, Warranty: 3-Year/100,000 Mile, .||Ad Hoc|
|2002 Volkswagen Beetle Used Exhaust Manifold, 2.0L, eng ID AVH, Very Good.||$118.00|
|2000 Volkswagen Beetle Used Hood, White, GLS PNT FLAKING, Very Good.||$167.00|
Help me find
Search DIY repair manuals by VIN...
Need To Fix Your Car or Truck?
Try Our Repair Service Finder
Help me find