Purchasing a used Daf XF105
Unveiled as the successor to the XF95 at the Amsterdam show in October 2005, production of the Daf XF105 started in January 2006.
Whereas the XF95 had a Euro-3 XE 12.3-litre engine, the XF105 sported the new 12.9-litre MX, claimed to be up to 4% more economical. Early XF105 units were Euro-4, but Euro-5 versions were also available from the outset.
The MX has a side-mounted camshaft operating unit injectors as well as the valves. NOx reduction is by SCR after-treatment. There are three nominal power ratings in the XF105; 410hp, 460hp and 510hp. Peak torque values are 2,000Nm, 2,300Nm and 2,500Nm respectively. A twin-turbo 560hp version of the MX was proposed but later abandoned due to insufficient market demand. The 460hp rating is easily the most popular.
Relatively few changes were made to the 95’s cab during its transition to 105. External revisions included a new bumper/valance and step mouldings that gave more ground clearance, bigger mirrors and a different grille. Most noticeable is the cab-top moulding on the Super Space Cab, re-styled with integrated spot-lights.
Inside, Daf halved the engine tunnel height to just 150mm in the XF105. The XF95’s 300mm tunnel was a legacy of earlier days when it needed to cover a 14-litre Cummins. Lowering the tunnel increased internal headroom to 1,735mm in the Space Cab and 2,105mm in the Super Space Cab. Height apart, the two cabs’ dimensions are identical.
New interior colour schemes and upholstery were applied to XF105 units produced from June 2009 onwards. A switch from 16-speed to 12-speed ZF Ecosplit as the standard manual gearbox – as opposed to the more popular automated 12-speed AS-Tronic – was also scheduled for this time, but the 16-speed continued as the standard manual box for a long time afterwards.
In 2010 Daf found it possible to meet the Euro-5 EEV (enhanced environmentally friendly vehicle) limit by fine-tuning combustion of the MX’s 410hp rating in the XF, eliminating the need for the diesel particulate filter in earlier EEV models. This was extended to higher ratings in early 2011.
Saving fuel, one engine at a time
All MX engines built since early 2011 incorporate several fuel-saving tweaks. In mid-2011 Daf introduced special ATe versions of the XF105 featuring these engine modifications, plus other economy features, such as a long final-drive ratio (2.69:1); engine-idle shutdown; restricted ability to override automated gear-shifting; 85km/h speed-limiter setting; air-management kit; low rolling resistance tyres and better presentation of fuel consumption data in the dash display. Daf claims it all adds up to 3% better fuel consumption.
Heavily revised Euro-6 versions are now on stream, although these are simply called XF; the 105 suffix is no more. The majority of UK XF105 units are 6x2 FTG models with twin-steer.
If weight is critical, consider the rarer FTP models with a lightweight, non-steered mid-lift axle with 17.5-inch tyres, saving almost 600kg. Also look for units with Daf’s engine brake: a £1,300 option when new but worth having in a used XF in our opinion.
- According to CAP Red Book edition (September 2013), a three-year-old 6x2 FTG Euro-5 XF105.460 with a Super Space cab with 420,000km on the clock retails at £32,250 (plus VAT).
Model: Daf XF105.510 6x2 tractor Euro-5
There have been three recalls since 2006 and here is the most significant:
- November 2012 Brake pipes may crack. Further investigations undertaken by Daf suggest the most likely cause of cracked Hytrel brake pipes in hand brake circuit is due to stress on the air pipe, in combination with a chemical agent that may be used in the cleaning of vehicles.