Repair Tips for A Well Maintained BMW


As a BMW owner, your vehicle requires a little more attention than the average car.  Even though BMW repairs can seem to be more costly than you might be used to, there’s a lot you can do in the way of preventative maintenance, which can substantially reduce those repair costs in the long run.  I’ll be going over a few of the most commonly overlooked areas of your BMW, and showing you ways in which we can prevent problems ahead of time.  Being proactive will leave you with a greater sense of security and reliability, and you’ll spend less time worrying whether or not a surprise breakdown is in your future.

  1. Cooling System

The best place to start might as well be your BMW’s cooling system.  The real weak point in any BMW.  Many customers actually choose to replace their entire cooling system at some point, just for the peace of mind.  It sounds more expensive, but honestly ends up costing much less than doing one thing at a time as components age and require replacement.  Living in San Diego, where summertime temperatures can reach over 100, it’s no fun breaking down in the middle of rush hour traffic.  And of course, that’s usually just the time you have a cooling problem.

The most basic measure is to make sure your coolant is changed regularly.  This will help components last the longest and need the least repairs.  At lease change it every 5 years or 100,000 miles at minimum.

If you have over 100,000 miles or close to it, you might want to consider changing your water pump and thermostat.  These are usually the first to go on your BMW.  It wouldn’t be a bad idea to also at least replace the main radiator hoses, as the rubber will probably be showing signs of swelling by now.  If you have a newer BMW with the N52 and later inline 6 engines, (approximately 2006 and up), you will have an electric water pump which is considerably more expensive to replace.  It is also common for them to fail and need replacing a lot earlier than 100,000 miles.  Personally, I would recommend 60,000-80,000, but it’s your call.

Next would be the radiator and fan clutch.  If you have an electric fan used on newer models, you are in luck.  They are usually pretty decent and don’t require repair often.  As far as a time frame on radiator and fan clutch, 150,000 miles or close to it seems to be where I see the most failures.  Of course there are plenty that need repair earlier.  Just another reason why the complete cooling system repair seems to make more and more sense.


bmw water pump repair san diego

2. Belts, Tensioners and Pulleys

This one is a must.  Belts should be replaced every 30,000-60,000 miles.  And I would at least change the belt tensioner and idler pulley around 100,000.  Tensioner and idler bearings often run dry of grease, and sometimes fail and seize up without any warning.  This ends up shredding the belt and can turn a simple repair into a difficult one, as the belt with actually melt onto all the other accessory pulleys on the motor.  As an added bonus, if you have an N52 model BMW, you run the risk of destroying the whole engine.  I have read numerous accounts and seen one case personally, where a shredded belt actually got sucked behind the crankshaft damper and drawn into the engine though the seal.  It usually results in an un-repairable engine, and they are not cheap to replace.

3.  Tune Up / Ignition System Components

For quite some time now, BMW has been claiming 100,000 mile intervals for spark plug changes for non turbocharged vehicles.  While most of the time that hold true, the state of the plugs I pull out of those engines are far from being in good shape.  You can definitely feel a difference when you replace them.  For that reason I tend to think closer to 80,000 is a better idea.  A basic tune up will include replacing all the plugs with OEM and cleaning of the mass air flow sensor.  If you have a newer turbocharged BMW, the interval is much shorter, from 30,000-60,000 miles.  Bad plugs can cause the engine to misfire and reduce fuel economy.  If there is a pronounced noticeable misfire or rough running, thins can lead to serious repairs and money.  Many customers like to replace all the coils as well, usually if they have over 100,000.  When one coil goes bad, there it’s common for others to go bad and need repair not long after.  It’s not always the case, but that’s why it’s a good idea to replace them all and not have to worry about it.

San Diego BMW Coil Repair


Here’s a list of some other common repairs I perform for BMW’s in San Diego.  I’ll be writing some more articles like this in the future so check back soon.  If you have any questions you’d like to ask me about BMW repair I’d be more than happy to answer your email.  Thanks for reading!



BMW Auto Repair Services I Perform –

  • Tune Up / Spark Plugs
  • Brakes
  • Cooling System
  • Check Engine Light Diagnostics
  • Electrical
  • Charging System
  • Suspension Struts / Shocks / Control Arms
  • Engine Malfunction / Reduced Power
  • Direct Injection Carbon Cleaning
  • Inspection Due
  • Oil Leaks
  • Oil Changes
  • Transmission Fluid Service
  • Battery Registration
  • V8 Valley Pan and Coolant Pipe Leaks
  • CCV Valve and Oil Separator
  • Traction Control / DSC / Brake Lights
  • Belts and Pulleys
  • Head Gaskets

Are you looking for BMW repair San Diego?  I offer a convenient mobile based service.  Competent, professional, over 10+ years experience and California/ASE Certified.  I have all the latest BMW diagnostic software specifically for your vehicle.  I use the highest quality OEM parts whenever possible, and all repairs are performed conveniently at your location.

I am located close to downtown San Diego, but I can travel most anywhere within the county.  By appointment only.  I am available afternoons and evenings, including weekends.  Please contact Corey at (619) 894-6650.

You can find more info and reviews by clicking Corey’s German Auto Repair, or navigating to the menu at the top.




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Call today for all your BMW auto repair needs!

Call today for all your BMW auto repair needs!


If you are in San Diego and need BMW repairs, look no further!

for mobile BMW repair in San Diego – call or text Corey – (619) 894-6650

Cal BAR Certified ARD00280553, San Diego CA