After the "Cambelt" thread there seems to be a bit of confusion between engines, especially the 1.8TDCi.
I decided to write a guide on timing belts in the MK4 Diesel, hopefully, it will be made sticky and help to aid any future confusion.
1.8TDCi
PRE 10/07
The 1.8TDCi's built before October 2007 had a Belt and Chain setup.
The fuel pump is driven by a chain from the crank...
The camshaft is driven from the fuel pump via a belt...
Post 10/07
Cars built after October 2007 with the 1.8TDCi engine have two belts.
The fuel pump is belt driven via the crank. Much like the chain, the belt is in a cassette.
This belt also has an oil feed much like the chain, whether or not the belt could be replaced with a chain is still unknown.
The camshaft is then driven from the fuel pump via a belt.
Replacement intervals
Fuel Pump Drive BELT - 10 years/125,000miles.
Fuel Pump Drive CHAIN - 10 years/125,000miles. CARS PRIOR TO THE MK4 MONDEO USING THE CHAIN SETUP DID NOT HAVE A REPLACEMENT INTERVAL
Cambelt - 10 years/125,000miles
THERE IS NO NEED TO REPLACE THE WATER PUMP UNLESS IT FAILS, THE WATER PUMP IS DRIVEN VIA THE AUX BELT
Prices
I have had a price from my local Ford dealer and is booked in on the 5th of December to have the AUX belt, Fuel pump drive belt, and the Cambelt replaced. The price I have for this is £480.17 inclusive of Parts, Labour and VAT.
The following are prices I've had from Ford Parts UK...
Mondeo (+)"GB" 1.8L Duratorq-TDCi (125PS) 5 Door RHD
Timing Belt
Part Number: 1215977
Retail Price: £40.97
You Pay: £32.78
Mondeo (+)"GB" 1.8L Duratorq-TDCi (125PS) 5 Door RHD
Timing Belt Cassette
Part Number: 1562244
Retail Price: £107.29
You Pay: £91.20
2.0/2.2 TDCi
The 2.0 and 2.2 engines both derive from the same PSA engine. The blocks are identical and so are the heads. The only difference is down to the bore sizes and pistons.
They have one timing belt that drives ONE camshaft and a water pump. This may also drive the fuel pump but right I am not sure whether or not it is driven off the camshaft.
As far as Ford is concerned that is all the timing gear that should ever need to be replaced, but if you look at the picture above you will see a chain between the two camshafts. This chain has a history of failing. The main cause of failure is the cogs on the cam are only pressed on and the cogs simply break free from the cams. The picture below (Courtesy of DarrenJLobb) shows the chain in question.
I have been told that it is often worth changing the chain when doing the cambelt, although the cogs on the camshafts aren't easy to replace. I would assume you would have to replace the entire cam, obviously, that could get very expensive!
Replacement Intervals
Timing Belt - 10years/125,000miles
Ford and Peugeot say there is no need to replace the chain between the camshafts regardless of stories surrounding them about failures.
Prices
Timing belt kit (Including water pump) from Ford for the 2.2 comes in at £160 +vat.
Timing belt kit (Including water pump) from Ford for the 2.0 comes in at £185 +vat.
I hope this answers all questions people have about the timing gear on the MK4 Diesel.
Bailes.
I decided to write a guide on timing belts in the MK4 Diesel, hopefully, it will be made sticky and help to aid any future confusion.
1.8TDCi
PRE 10/07
The 1.8TDCi's built before October 2007 had a Belt and Chain setup.
The fuel pump is driven by a chain from the crank...
The camshaft is driven from the fuel pump via a belt...
Post 10/07
Cars built after October 2007 with the 1.8TDCi engine have two belts.
The fuel pump is belt driven via the crank. Much like the chain, the belt is in a cassette.
This belt also has an oil feed much like the chain, whether or not the belt could be replaced with a chain is still unknown.
The camshaft is then driven from the fuel pump via a belt.
Replacement intervals
Fuel Pump Drive BELT - 10 years/125,000miles.
Fuel Pump Drive CHAIN - 10 years/125,000miles. CARS PRIOR TO THE MK4 MONDEO USING THE CHAIN SETUP DID NOT HAVE A REPLACEMENT INTERVAL
Cambelt - 10 years/125,000miles
THERE IS NO NEED TO REPLACE THE WATER PUMP UNLESS IT FAILS, THE WATER PUMP IS DRIVEN VIA THE AUX BELT
Prices
I have had a price from my local Ford dealer and is booked in on the 5th of December to have the AUX belt, Fuel pump drive belt, and the Cambelt replaced. The price I have for this is £480.17 inclusive of Parts, Labour and VAT.
The following are prices I've had from Ford Parts UK...
Mondeo (+)"GB" 1.8L Duratorq-TDCi (125PS) 5 Door RHD
Timing Belt
Part Number: 1215977
Retail Price: £40.97
You Pay: £32.78
Mondeo (+)"GB" 1.8L Duratorq-TDCi (125PS) 5 Door RHD
Timing Belt Cassette
Part Number: 1562244
Retail Price: £107.29
You Pay: £91.20
2.0/2.2 TDCi
The 2.0 and 2.2 engines both derive from the same PSA engine. The blocks are identical and so are the heads. The only difference is down to the bore sizes and pistons.
They have one timing belt that drives ONE camshaft and a water pump. This may also drive the fuel pump but right I am not sure whether or not it is driven off the camshaft.
As far as Ford is concerned that is all the timing gear that should ever need to be replaced, but if you look at the picture above you will see a chain between the two camshafts. This chain has a history of failing. The main cause of failure is the cogs on the cam are only pressed on and the cogs simply break free from the cams. The picture below (Courtesy of DarrenJLobb) shows the chain in question.
I have been told that it is often worth changing the chain when doing the cambelt, although the cogs on the camshafts aren't easy to replace. I would assume you would have to replace the entire cam, obviously, that could get very expensive!
Replacement Intervals
Timing Belt - 10years/125,000miles
Ford and Peugeot say there is no need to replace the chain between the camshafts regardless of stories surrounding them about failures.
Prices
Timing belt kit (Including water pump) from Ford for the 2.2 comes in at £160 +vat.
Timing belt kit (Including water pump) from Ford for the 2.0 comes in at £185 +vat.
I hope this answers all questions people have about the timing gear on the MK4 Diesel.
Bailes.