Hello All,

I am not new to Jaguar forum. I have owned XJ12, X300, XJS, S-Type, and X350, I am just new with X400. I just bought 2003 X400 3.0 L with only 32,000 miles. Its in prestine condition. I paid exact $5k. The only issue was the AC/Heating control panel which I was not able to adjust fan speed. This is my least concern for now. I have $2,000 put aside to refresh this X400. X-Type Gurus, please advice on must maintenace. I listed 10 please help and ad more.

1, Change ignition coil , spark plugs
2. Belt
3. Flush brake and power steering fluid.
4. Flush coolant
5. New tires
6.New brake pads
7. Transmision oil change Maxlife ATF
8. AC recharge and replace ac/heat panel
9, Inspect shocks and bushing
10. Valve cover gasket
11. fuel filter

 

Check the specs on your chosen ATF fluid. It MUST MEET IDEMITSU K17, period.

 

Recommended fluids Esso LT 71141 Shell ATF 3403 M115 Shell M1375.4 MERCON V
XT-5-QM ATF IDEMITSU K17(Jatco 3100 PL085)
Model Service Fill Specification Esso LT 71141 Shell ATF 3403 M115 Shell M1375.4
MERCON V XT-5-QM ATF IDEMITSU K17(Jatco 3100 PL085)
VIN Range From Up to
XJ
3.2/4.0 N/A 812317 878273 ×
3.2/4.0 N/A 878274 F59525 ×
4.0 SC 812317 878273 ×
4.0 SC 878274 F59525 ×
3.0, 3.5, 4.2 N/A G00442 current ×
XK
4.0 V8 N/A 001246 042634 ×
4.0 V8 N/A 04263 A30644 ×
4.0 V8 SC 024687 042634 ×
4.0 V8 SC 042635 A30644 ×
4.2 V8 N/A and SC A30645 current ×
S-TYPE
3.0/4.0 L00600 L86901 ×
3.0/4.0 L86902 M45254 ×
2.5/3.0/4.2 N/A and SC M45255 current ×
X-TYPE
2.5/3.0 V6 C00344 current ×
2.0 V6 C00344 current ×
2.0 Diesel D55324 curren

 

If you are doing the fluids, then I would do the rear axle and the transfer case. They both use the same fluid and you would only need to get 2 bottles of full synthetic 75W-140 gear lube. A note that may make your heart skip a beat: do not fret if you go to drain the transfer case and no fluid comes out. There is only supposed to be 600 ml of fluid in there, but even a very small leak will cause all the fluid to leave. But, the transfer case seems to hack having very little fluid in it. I would say to also do a brake fluid change when doing the brakes. Adds just a little more time, but it will ensure you have a good system when done.

 

Post some pictures of the car!

 

by https://www.flickr.com/photos/96036609@N03/, on Flickr

 

I only took couple photos. Please dont mind some other photos came from other vehicles. I am not good of posting photos.

 

Valvoline Application Guide showns Maxkife ATF

 

Maintenance 1: Repacked pro-shaft bearing- 2 hours. I dropped the drive shaft and removed the rear bearing cap (T-6 and 13 mm sockets). Removal of the bearing rear cap was very easy by using a chisel and a large flat screw driver. Bearing was dry as a bone and crusted with dry grease. I repacked bearinng with high temp grease. While bearing cap was off, I drilled two holes for needle greasing in the near future maintance if needed. I bought a spare center bearing but decided not to change yet since I eliminated the 30-20 mph decaleration humming. $67.00 part not used

Maintanace 2: Four Good Year Tires $650.00.

Maintenance 3: Full four wheel aligment $140.00.

by https://www.flickr.com/photos/96036609@N03/, on Flickr

by https://www.flickr.com/photos/96036609@N03/, on Flickr

by https://www.flickr.com/photos/96036609@N03/, on Flickr

by https://www.flickr.com/photos/96036609@N03/, on Flickr