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• Sleeping with engine running 25 Feb 2009 (Forum)
  Is leaving an engine running while taking a nap acceptable and common? To me it seems wrong.
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  Car runs better with less fuel 4 Sep 2012 (Ask HJ)
  My 1996 VW Polo 1.0 runs better with less fuel in the tank - any reasons for this?
• VW running on 26 Apr 2001 (Forum)
  Does this mean that the engine is running backwards and will it cause any damage? Thanks Mark
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  Volkswagen Passat CC V6 coolant pump failure 11 Sep 2014 (Ask HJ)
  I have a 2011 Volkswagen Passat CC 3.6 V6 and the V55 additional coolant pump is not running (aux pump) which should run when the engine is switched off...
• Mercedes-Benz A45 AMG - Running Costs 31 Mar 2015 (Forum)
  Can anybody assist with providing the true running cost for a CLA 45 AMG 
• Running in 6 Jun 2006 (Forum)
  Not wishing to have another new engine in my Espace 2.2 DCI, ever, What is the suggested recommendation of running in, what max speed and to how many miles.
• Ford Mondeo 2.0 tdci 115 - starting problem 12 Apr 2014 (Forum)
  car as NO running probs  BUT   starting takes 5 to 15 seconds very rough no trot responce injectors leak test ok  pressure in rail is 400 then 5 to 10 seconds runs like new .       pressure is normal only when running,. second starting when hot not easy runs but wont catch if u know what i mean then runs fine, DASH CODES 0302 BUT work shop dianostic shows no codes????
• When is a car run in? 22 Aug 2008 (Forum)
  From time to time someone writes in to HJ in the paper and says "I've got a Merc 123 which has covered 275,000 miles." And HJ sometimes replies (words to the effect of ) "that's only just run in. There's a bloke in New Milliband, Texas whose Merc 123 has covered 350,000 miles." So when is an ordinary car run in? How can you tell? Does run in mean at the peak of performance for that particular car?
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  What fuel grade should I run my Toyota Celica on? 25 Jun 2018 (Ask HJ)
  I have a 1992 generation 5 Celica Convertible imported from Japan many years ago. I notice that when driving up an incline it seems to 'pink'. I have not...
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  Replacing run-flats 27 Jul 2011 (Ask HJ)
  My 2009 320SE Coupe, which is on run flats, is causing a problem. The warning light comes on every few weeks to indicate a loss of pressure. Each time...
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  Can I buy all-season run-flat tyres? 27 Oct 2020 (Ask HJ)
  I would like to purchase some run-flat all-season tyres in size 225/45 R18. Do they exist?
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  Which tyres should I fit to Mercedes-Benz E 220d 4Matic estate? 15 Jul 2022 (Ask HJ)
  I have recently bought a Mercedes-Benz E 220d 4Matic estate with run-flat 245/40 R19 fronts and 275/35 R19 rears. The local roads are disintegrating and...
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  Should I swap my run-flats for standard tyres? 29 Oct 2020 (Ask HJ)
  Mercedes tells me I should not replace my factory fitted run-flat tyres with ordinary summer tyres because the cars suspension has been set up for run-flats....
• Peugeot 206cc 2.0 - Running rough when cold 20 Apr 2010 (Forum)
  The car starts ok but after about a minute it starts to run rough almost like it is missfiring, when it gets warm seems to run fine. I have been told its a common problem does any one have any idea's. Thanks, Doug.  
• Short mileage runs what to buy 20 Aug 2006 (Forum)
  Looking to purchase a 2nd hand car for the wife, to replace the ageing 1600 Astra Sport. Need it for work and the annual run to the airport. The daily work journey is just over 2 miles a day. So looking for something small reliable and cheap to run, But not to slow on the motorway. Any advice please. Thanks Darren
• leave engine running or turn off? 19 Feb 2005 (Forum)
  When sitting in a traffic jam, or waiting for someone (or whatever), when should one turn off the engine, and when should one just leave it running? Or, to put it another way - how long does one have to sit before it becomes more sensible to turn off the engine instead of letting it run?
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  Can run-flat tyres be repaired? 9 Nov 2020 (Ask HJ)
  My run-flat tyre has a slow puncture caused by a nail in the centre tread of the tyre. Can the run-flat tyre be repaired?
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  Should petrol turbos run for a few minutes at the end of a journey to cool down? 21 Jan 2017 (Ask HJ)
  I know you advocate to let diesel engines run for a few minutes at the end of a journey with turbos fitted. Will this also apply to petrol engines as there...
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  Run flat tyres - should I buy a spare anyway? 10 Jan 2013 (Ask HJ)
  I am buying a car with run flats. Am I being over cautious in considering buying a spare wheel or a spare tyre, to keep for longer journeys?
• Peugeot - Expert 2.0 HDI running on fault. 29 Jan 2010 (Forum)
  i have a running fault with a Peugeot expert 2.0 hdi. it starts and runs with 298 bar at the fuel rail-not fluctuating when idling. it will sit idling all day but when u switch off it runs on for 5 secs. when you try and drive it just cuts out but will start up and stay idling. i've replaced rail pressure sensor, in tank fuel pump and also fitted a re=con high pressure pump. checked all the wiring. keep getting fault code p1138. after replacing the hp pump it did run ok for about 4 hours. any ideas?