How much do you trust your garage? - MBClub UK

jasonyw · 23-08-2010, 10:15 AM

Recently I bought a Conti tyre and told the fitter to pump up to 29psi, he said he did.

I went to the nearest Sainsburys to check on the pressure, it was 35psi.

I prefer to do my own services in all my cars if I can.

Which? survey reveals nine in ten garages 'fail to repair car faults' | Mail Online

**jaymanek** · 23-08-2010, 10:16 AM

I wouldnt trust a sainsburys pressure guage! Also when you got to sainsburys your tyre will have heated up...

wemorgan · 23-08-2010, 10:25 AM

AutoExpress did a review of different pressure gauges. IIRC 10% variation wasn't untypical.

**BlackC55** · 23-08-2010, 10:28 AM

Quote:

Originally Posted by jasonyw

Recently I bought a Conti tyre and told the fitter to pump up to 29psi, he said he did.

I went to the nearest Sainsburys to check on the pressure, it was 35psi.

I prefer to do my own services in all my cars if I can.

Which? survey reveals nine in ten garages 'fail to repair car faults' | Mail Online

So you believe a supermarket tyre guage?

They are often very inacurate.

WDB124066 · 23-08-2010, 10:35 AM

Is there a requirement for a public use gauge to be within a specified limit like scales are in the supermarkets?

How many tyre shops calibrate their pressure gauges on a regular basis?

Will · 23-08-2010, 10:36 AM

As said, variation between gauges + warm tyre from driving to shops, a variation of 6psi (!) wouldn't cause me to lose any sleep.

Maybe your tyre is now under-inflated if you adjusted the pressure when hot using a supermarket pressure gauge...

WDB124066 · 23-08-2010, 10:39 AM

Maybe, but how do you know??

rossyl · 23-08-2010, 10:40 AM

Supermarket tyre gauge vs a Shell or an Esso? Is their likely to be that much difference?

I thought those sort of machines would be mass produced.

WDB124066 · 23-08-2010, 10:42 AM

Quote:

Originally Posted by rossyl

Supermarket tyre gauge vs a Shell or an Esso? Is their likely to be that much difference?

Oh yes! You would be surprised.

gkerr4 · 23-08-2010, 10:58 AM

Quote:

Originally Posted by rossyl

Supermarket tyre gauge vs a Shell or an Esso? Is their likely to be that much difference?

I thought those sort of machines would be mass produced.

I wouldn't trust ANY garage forecourt air-guages!!

Always check your tyres in the morning before the car has ran or the sun has heated them up and using a reliable, quality pressure guage. Good digital guages can be bought at reasonable prices now and will remain in service for years!

jasonyw · 23-08-2010, 11:07 AM

Quote:

Originally Posted by gkerr4

I wouldn't trust ANY garage forecourt air-guages!!

Always check your tyres in the morning before the car has ran or the sun has heated them up and using a reliable, quality pressure guage. Good digital guages can be bought at reasonable prices now and will remain in service for years!

Do you hand or foot pump your tyres too?

renault12ts · 23-08-2010, 11:14 AM

Carry a digital gauge. Check your tyres at home. If they need inflating then go to you local garage and put the requires extra in. I assume you will not have so far to go that your tyres will have heated up too much.

Jason, you are allowed to help yourself. But complaining about the tyre pressure in one tyre...did you check all tyres while you were at it.

wxmclk · 23-08-2010, 06:09 PM

I don't trust them.

My local main stealer did my last "B" service, after taking the time to ring me up and advise a "B" was due rather than the requsted "A". Apparently the service book and service indicator didn't marry up, as the previous owner had had either two back to back "B" services or the indicator had been wrongly set on STAR somewere down the line. Either way I agreed, and reiterated with the service guy to correctly reset the indicator in line with the service history book- i.e next service being an "A" in 12 months or 17000 miles.

Despite promises of yes, and no problem Sir, when I collected the car surprise, surprise the indicator was reading wrongly.It was very swiftly taken round the back for the tech to sort (took him around 20 mins). I meanwhile spent a pleasant 5 minutes laying into the so called aftersales goon from MB.

So no I don't trust the main stealer!

talldude · 23-08-2010, 06:14 PM

Best get a good quality gauge and a footpump, don't trust the footpump only the gauge, so check after again. Do it in the morning when the tyres are cold and on even ground.

timskemp · 23-08-2010, 07:59 PM

Worth Every Penny

23-08-2010, 10:15 AM	#1
jasonyw Banned Join Date: May 2009 Posts: 632	How much do you trust your garage? Recently I bought a Conti tyre and told the fitter to pump up to 29psi, he said he did. I went to the nearest Sainsburys to check on the pressure, it was 35psi. I prefer to do my own services in all my cars if I can. Which? survey reveals nine in ten garages 'fail to repair car faults' \| Mail Online

23-08-2010, 10:39 AM	#7
WDB124066 Hardcore MB Enthusiast Join Date: Apr 2009 Car: 1996 E320 Sportline Cabriolet x 2 Posts: 2,219	Maybe, but how do you know?? Last edited by WDB124066; 23-08-2010 at 10:42 AM.

23-08-2010, 06:09 PM	#13
wxmclk Hardcore MB Enthusiast Join Date: Mar 2009 Location: North Wales Border Car: BMW E92 325i M Sport (current) MB CLK280 W209 (sold) MB W203 C200K (sold) Posts: 262	I don't trust them. My local main stealer did my last "B" service, after taking the time to ring me up and advise a "B" was due rather than the requsted "A". Apparently the service book and service indicator didn't marry up, as the previous owner had had either two back to back "B" services or the indicator had been wrongly set on STAR somewere down the line. Either way I agreed, and reiterated with the service guy to correctly reset the indicator in line with the service history book- i.e next service being an "A" in 12 months or 17000 miles. Despite promises of yes, and no problem Sir, when I collected the car surprise, surprise the indicator was reading wrongly.It was very swiftly taken round the back for the tech to sort (took him around 20 mins). I meanwhile spent a pleasant 5 minutes laying into the so called aftersales goon from MB. So no I don't trust the main stealer! Last edited by wxmclk; 23-08-2010 at 06:13 PM.

23-08-2010, 10:16 AM	#2
jaymanek Authorised Forum Sponsor Join Date: Nov 2002 Location: Nuneaton Warwickshire Car: Lots of Mercedes! Posts: 14,488	I wouldnt trust a sainsburys pressure guage! Also when you got to sainsburys your tyre will have heated up...

23-08-2010, 10:25 AM	#3
wemorgan Hardcore MB Enthusiast Join Date: Apr 2008 Car: R172 SLK 250CDI Posts: 7,084	AutoExpress did a review of different pressure gauges. IIRC 10% variation wasn't untypical.

23-08-2010, 10:35 AM	#5
WDB124066 Hardcore MB Enthusiast Join Date: Apr 2009 Car: 1996 E320 Sportline Cabriolet x 2 Posts: 2,219	Is there a requirement for a public use gauge to be within a specified limit like scales are in the supermarkets? How many tyre shops calibrate their pressure gauges on a regular basis?

23-08-2010, 10:36 AM	#6
Will Hardcore MB Enthusiast Join Date: Jan 2003 Location: Surrey Car: 2001 CLK55 AMG / 1999 E320T Avantgarde / 1988 190E 2.3-16 Manual / 1988 190E 2.5-16 Manual Posts: 8,607	As said, variation between gauges + warm tyre from driving to shops, a variation of 6psi (!) wouldn't cause me to lose any sleep. Maybe your tyre is now under-inflated if you adjusted the pressure when hot using a supermarket pressure gauge...

23-08-2010, 10:40 AM	#8
rossyl Hardcore MB Enthusiast Join Date: Aug 2009 Location: N.London Car: CLK 230K W208 Coupe (1999)(Auto) Posts: 667	Supermarket tyre gauge vs a Shell or an Esso? Is their likely to be that much difference? I thought those sort of machines would be mass produced.

23-08-2010, 11:14 AM	#12
renault12ts Hardcore MB Enthusiast Join Date: Mar 2009 Car: 2000 S210 E320CDI Avantgarde Posts: 8,915	Carry a digital gauge. Check your tyres at home. If they need inflating then go to you local garage and put the requires extra in. I assume you will not have so far to go that your tyres will have heated up too much. Jason, you are allowed to help yourself. But complaining about the tyre pressure in one tyre...did you check all tyres while you were at it.

23-08-2010, 06:14 PM	#14
talldude Member Join Date: Jul 2010 Car: Merc 270cdi Obsidian Black, factory built AMG trim. Avantgarde, Panoramic, 18''AMG, elec rear blinds Posts: 39	Best get a good quality gauge and a footpump, don't trust the footpump only the gauge, so check after again. Do it in the morning when the tyres are cold and on even ground.

23-08-2010, 07:59 PM	#15
timskemp Hardcore MB Enthusiast Join Date: Dec 2006 Location: Hull Car: W204 C320CDI Posts: 2,839	Worth Every Penny

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